Finding the Third Proportional to 485,068,315 and 745,592,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,068,315 : 745,592,683.50 = 745,592,683.50 : x
2. Step 2: Convert to fraction form
   485,068,315/745,592,683.50 = 745,592,683.50/x
3. Step 3: Cross multiply
   485,068,315x = 745,592,683.50 × 745,592,683.50
4. Step 4: Simplify right side
   485,068,315x = 555,908,449,688,731,200
5. Step 5: Solve for x
   x = 555,908,449,688,731,200/485,068,315
6. Step 6: Final answer
   x = 1,146,041,562.60