Finding the Third Proportional to 7,398,899,157 and 10,690,131,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,398,899,157 : 10,690,131,571.50 = 10,690,131,571.50 : x
2. Step 2: Convert to fraction form
   7,398,899,157/10,690,131,571.50 = 10,690,131,571.50/x
3. Step 3: Cross multiply
   7,398,899,157x = 10,690,131,571.50 × 10,690,131,571.50
4. Step 4: Simplify right side
   7,398,899,157x = 114,278,913,015,981,064,192
5. Step 5: Solve for x
   x = 114,278,913,015,981,064,192/7,398,899,157
6. Step 6: Final answer
   x = 15,445,394,049.99