Finding the Third Proportional to 55,536,656,782 and 84,604,358,499

Step by Step Solution

1. Step 1: Write the proportion equation
   55,536,656,782 : 84,604,358,499 = 84,604,358,499 : x
2. Step 2: Convert to fraction form
   55,536,656,782/84,604,358,499 = 84,604,358,499/x
3. Step 3: Cross multiply
   55,536,656,782x = 84,604,358,499 × 84,604,358,499
4. Step 4: Simplify right side
   55,536,656,782x = 7,157,897,477,027,313,745,920
5. Step 5: Solve for x
   x = 7,157,897,477,027,313,745,920/55,536,656,782
6. Step 6: Final answer
   x = 128,885,998,757.98