Is there a way I can share my internet from my mac to my Ps3?

So i live over seas and our wireless just died and now I use this thing called Zain E-go in kuwait. So know i can't play online on my Ps3 so i was wondering if there was a way to share my internet from my mac or pc with windows 7 to it. I've looked on google but they didn't help so much. So can you please help me =]