A particle that has an 8.2 C charge moves with a velocity of magnitude 5.0 105

Question:

A particle that has an 8.2 μC charge moves with a velocity of magnitude 5.0 × 105 m/s along the +x axis. It experiences no magnetic force, although there is a magnetic field present. The maximum possible magnetic force that the charge could experience has a magnitude of 0.48 N. Find the magnitude and direction of the magnetic field. Note that there are two possible answers for the direction of the field.