Along with my google ads can I apply for other ad media and post their ads too with Google ads. I wanna post more ads. Is it allowed to use more than one adsense program and post both media's ads on same page?
Yes but only if the other ads are non-contextual.
There is a limit per page of AdSense units per page, 3 banner units and 3 link units.
You may have any number of third party banners and links on the same page.