You miss the entire point of the concept of a "triune God" Sterling (as I think do some others on this thread)
It is deliberately paradoxical. It is supposed to stretch one's reasoning powers to the limit, until the individual realizes that he cannot comprehend it with his mind and simply has to "let go" and rest in unknowing.
It isn't meant to be "palatable with basic mathematical reasoning skills". Someone once compared it to a Zen koan, which is not also not intended to be rational to ordinary thinking but urges one to move beyond this.
It is a "mystery" of faith. A mystery is not a mystery if it can be proven mathematically.
The Spanish mystic Blessed Ramon Llull once put forth the truly sweet idea that our grasping after God through the knowledge of our human intelligence is comparable to little children chasing after and trying to catch butterflies in a field. They find themselves unable to catch the insects and instead merely trample on the flowers beneath their feet.
Llull then explained that God shows Himself to the simple in faith, not to the subtle, to the heart and not to the intellect which, while one should stretch it to the full through searching philosophical inquiry, one will eventually reach a dead-end when the door of knowledge closes and we must rest in unknowing, approaching God through "the window of love"
p LOVE :flirt: :angel2
to use Llull's terminology.
This is applicable to the mystery of the Incomprehensible Trinity in Unity of the Godhead.