Two forces act on an object. One has a magnitude of 266 newtons and points at an angle of 60 degrees above the +x axis. The second has a magnitude of 284 newtons and points at an angle of 30 degrees above the +x axis. A third force is applied and balances to zero the effects of the other two. What are the nagnitudes and direction of this third force? Specify the direction relative to the negative x axis.