Finding the Third Proportional to 7,398,899,143.50 and 10,690,131,555

Step by Step Solution

1. Step 1: Write the proportion equation
   7,398,899,143.50 : 10,690,131,555 = 10,690,131,555 : x
2. Step 2: Convert to fraction form
   7,398,899,143.50/10,690,131,555 = 10,690,131,555/x
3. Step 3: Cross multiply
   7,398,899,143.50x = 10,690,131,555 × 10,690,131,555
4. Step 4: Simplify right side
   7,398,899,143.50x = 114,278,912,663,206,723,584
5. Step 5: Solve for x
   x = 114,278,912,663,206,723,584/7,398,899,143.50
6. Step 6: Final answer
   x = 15,445,394,030.49