If the wiring is not "two wire with ground" there is no way to have a three prong outlet, that works correctly, without rewiring your apartment.
This would be against code in a NEW construction but evidently your apartment building is quite old. In a multilpe story apartment building it may be necessary to remove the wall board to replace all the wiring. I can't imagine that the owners would go to the trouble unless they were forced to.
If it WAS wired with "two wire with ground" they would only have to change the outlets.
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