Finding the Third Proportional to 64,508,170,505.50 and 89,693,454,819.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,508,170,505.50 : 89,693,454,819.25 = 89,693,454,819.25 : x
2. Step 2: Convert to fraction form
   64,508,170,505.50/89,693,454,819.25 = 89,693,454,819.25/x
3. Step 3: Cross multiply
   64,508,170,505.50x = 89,693,454,819.25 × 89,693,454,819.25
4. Step 4: Simplify right side
   64,508,170,505.50x = 8,044,915,837,412,840,570,880
5. Step 5: Solve for x
   x = 8,044,915,837,412,840,570,880/64,508,170,505.50
6. Step 6: Final answer
   x = 124,711,579,546.76