Finding the Third Proportional to 55,536,656,778 and 84,604,358,493

Step by Step Solution

1. Step 1: Write the proportion equation
   55,536,656,778 : 84,604,358,493 = 84,604,358,493 : x
2. Step 2: Convert to fraction form
   55,536,656,778/84,604,358,493 = 84,604,358,493/x
3. Step 3: Cross multiply
   55,536,656,778x = 84,604,358,493 × 84,604,358,493
4. Step 4: Simplify right side
   55,536,656,778x = 7,157,897,476,012,061,491,200
5. Step 5: Solve for x
   x = 7,157,897,476,012,061,491,200/55,536,656,778
6. Step 6: Final answer
   x = 128,885,998,748.98