Finding the Third Proportional to 15,581,853,081 and 31,597,289,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,581,853,081 : 31,597,289,536.50 = 31,597,289,536.50 : x
2. Step 2: Convert to fraction form
   15,581,853,081/31,597,289,536.50 = 31,597,289,536.50/x
3. Step 3: Cross multiply
   15,581,853,081x = 31,597,289,536.50 × 31,597,289,536.50
4. Step 4: Simplify right side
   15,581,853,081x = 998,388,706,053,412,356,096
5. Step 5: Solve for x
   x = 998,388,706,053,412,356,096/15,581,853,081
6. Step 6: Final answer
   x = 64,073,810,788.96