Finding the Third Proportional to 478,872 and 714,156

Step by Step Solution

1. Step 1: Write the proportion equation
   478,872 : 714,156 = 714,156 : x
2. Step 2: Convert to fraction form
   478,872/714,156 = 714,156/x
3. Step 3: Cross multiply
   478,872x = 714,156 × 714,156
4. Step 4: Simplify right side
   478,872x = 510,018,792,336
5. Step 5: Solve for x
   x = 510,018,792,336/478,872
6. Step 6: Final answer
   x = 1,065,042.00