Finding the Third Proportional to 15,581,853,083 and 31,597,289,541

Step by Step Solution

1. Step 1: Write the proportion equation
   15,581,853,083 : 31,597,289,541 = 31,597,289,541 : x
2. Step 2: Convert to fraction form
   15,581,853,083/31,597,289,541 = 31,597,289,541/x
3. Step 3: Cross multiply
   15,581,853,083x = 31,597,289,541 × 31,597,289,541
4. Step 4: Simplify right side
   15,581,853,083x = 998,388,706,337,788,002,304
5. Step 5: Solve for x
   x = 998,388,706,337,788,002,304/15,581,853,083
6. Step 6: Final answer
   x = 64,073,810,798.99