In the broadest sense of the word perhaps.
pros·ti·tute
1
: to offer indiscriminately for sexual intercourse especially for money
2
: to devote to corrupt or unworthy purposes : debase <prostitute one's talents>
— pros·ti·tu·tor noun
Source:Merriam Webster
pros·ti·tute
[pros-ti-toot, -tyoot] Show IPA noun, verb, pros·ti·tut·ed, pros·ti·tut·ing.
noun
1.
a woman who engages in sexual intercourse for money; whore; harlot.
2.
a man who engages in sexual acts for money.
3.
a person who willingly uses his or her talent or ability in a base and unworthy way, usually for money.
verb (used with object)
4.
to sell or offer (oneself) as a prostitute.
5.
to put to any base or unworthy use: to prostitute one's talents.
Source: On Line Dictionary
But to say that pornography "prostitution" is in some way identical to the prostitution of whores or harlots, is to purposely misrepresent the term. Lets not conflate words when there's no need to.