Finding the Third Proportional to 64,508,170,354.88 and 89,693,454,559.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,508,170,354.88 : 89,693,454,559.50 = 89,693,454,559.50 : x
2. Step 2: Convert to fraction form
   64,508,170,354.88/89,693,454,559.50 = 89,693,454,559.50/x
3. Step 3: Cross multiply
   64,508,170,354.88x = 89,693,454,559.50 × 89,693,454,559.50
4. Step 4: Simplify right side
   64,508,170,354.88x = 8,044,915,790,817,091,649,536
5. Step 5: Solve for x
   x = 8,044,915,790,817,091,649,536/64,508,170,354.88
6. Step 6: Final answer
   x = 124,711,579,115.64