Finding the Third Proportional to 137,257,560 and 209,102,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,257,560 : 209,102,404.50 = 209,102,404.50 : x
2. Step 2: Convert to fraction form
   137,257,560/209,102,404.50 = 209,102,404.50/x
3. Step 3: Cross multiply
   137,257,560x = 209,102,404.50 × 209,102,404.50
4. Step 4: Simplify right side
   137,257,560x = 43,723,815,567,681,624
5. Step 5: Solve for x
   x = 43,723,815,567,681,624/137,257,560
6. Step 6: Final answer
   x = 318,553,058.70