Finding the Third Proportional to 345,139,320 and 466,457,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,139,320 : 466,457,356.50 = 466,457,356.50 : x
2. Step 2: Convert to fraction form
   345,139,320/466,457,356.50 = 466,457,356.50/x
3. Step 3: Cross multiply
   345,139,320x = 466,457,356.50 × 466,457,356.50
4. Step 4: Simplify right side
   345,139,320x = 217,582,465,432,968,096
5. Step 5: Solve for x
   x = 217,582,465,432,968,096/345,139,320
6. Step 6: Final answer
   x = 630,419,233.12