I have a triangle (as per below figure)

the Known points are all the triangle distances ie A,B,C

The two vertices are known,x1,y1, x2,y2.

I require the third vertice formula / equation for x3 and y3

the angle are not known.(i do not need them now)

this is not a right angle triangle

i need this for my programming purpose

Please help me as soon as possible