If you don't mind doing it graphically.
An easy way to do it is to determine the two vectors, (size and direction) and add them.
Put the first one starting at the origin going S69oE size of 430. Then put the begining of the second one at the end of the first one, S at 25.
Give it a try, I can help further if you need.
The green vector in the picture below is your resultant vector.
If you break up the two vectors into horizontal and vertical componants you can use pythagorus' therom to solve for the resultant