Finding the Third Proportional to 107,285,710.50 and 231,722,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,285,710.50 : 231,722,689.50 = 231,722,689.50 : x
2. Step 2: Convert to fraction form
   107,285,710.50/231,722,689.50 = 231,722,689.50/x
3. Step 3: Cross multiply
   107,285,710.50x = 231,722,689.50 × 231,722,689.50
4. Step 4: Simplify right side
   107,285,710.50x = 53,695,404,829,113,408
5. Step 5: Solve for x
   x = 53,695,404,829,113,408/107,285,710.50
6. Step 6: Final answer
   x = 500,489,809.68