Finding the Third Proportional to 13,288,099,310 and 31,367,828,657

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288,099,310 : 31,367,828,657 = 31,367,828,657 : x
2. Step 2: Convert to fraction form
   13,288,099,310/31,367,828,657 = 31,367,828,657/x
3. Step 3: Cross multiply
   13,288,099,310x = 31,367,828,657 × 31,367,828,657
4. Step 4: Simplify right side
   13,288,099,310x = 983,940,674,654,910,414,848
5. Step 5: Solve for x
   x = 983,940,674,654,910,414,848/13,288,099,310
6. Step 6: Final answer
   x = 74,046,758,057.75