Finding the Third Proportional to 52,426,939.50 and 78,640,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,426,939.50 : 78,640,414.50 = 78,640,414.50 : x
2. Step 2: Convert to fraction form
   52,426,939.50/78,640,414.50 = 78,640,414.50/x
3. Step 3: Cross multiply
   52,426,939.50x = 78,640,414.50 × 78,640,414.50
4. Step 4: Simplify right side
   52,426,939.50x = 6,184,314,792,731,810
5. Step 5: Solve for x
   x = 6,184,314,792,731,810/52,426,939.50
6. Step 6: Final answer
   x = 117,960,629.63