Finding the Third Proportional to 5,128,675,758.50 and 7,662,822,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,128,675,758.50 : 7,662,822,892.50 = 7,662,822,892.50 : x
2. Step 2: Convert to fraction form
   5,128,675,758.50/7,662,822,892.50 = 7,662,822,892.50/x
3. Step 3: Cross multiply
   5,128,675,758.50x = 7,662,822,892.50 × 7,662,822,892.50
4. Step 4: Simplify right side
   5,128,675,758.50x = 58,718,854,681,822,068,736
5. Step 5: Solve for x
   x = 58,718,854,681,822,068,736/5,128,675,758.50
6. Step 6: Final answer
   x = 11,449,125,943.38