Two point charges are located on the x -axis. One has a charge of 1.15 C and is located at x = 0.0 m, and the other has a charge of -4.07 C and is...

Two point charges are located on the x-axis. One has a charge of 1.15 μC and is located at x = 0.0 m, and the other has a charge of -4.07 μC and is located at x = 11.7 m. At what location on the x-axis (other than at infinity) would the electric force on a third point charge of 3.32 μC be zero?