basically the force is the same but the mass is different
Think of this
The earth pulls you down, but you also pull the earth up, because you have mass and therefore have your own gravitational field(albeit a small one compared to the earth.) If you jump into the air you push down on the earth, but because it took effort pushing against an object in space (earth) to move your mass upwards that means that you also pushed earth down. You actually cause earth to move when you jump, but the movement is basically negligible. In order for you to jump up you had to push off of the earth, and the earth's enormous mass allowed it to exert a force on your legs that kept it close enough to its original position so you could jump up.
I'm not even sure of what I said so I could be wrong.forget THIS stuff BETTER EXAMPLE
A semi truck and a smart car are heading towards each other. When they collide the smart car will be thrown into the sunset while the semi truck will seem unphased, but the smart car did push the semi truck with the same force as it pushed the smart car, just that it weighs so much more and has so much more mass that it cancels out the force the smart car had on it.
