Finding the Third Proportional to 479,061 and 718,605

Step by Step Solution

1. Step 1: Write the proportion equation
   479,061 : 718,605 = 718,605 : x
2. Step 2: Convert to fraction form
   479,061/718,605 = 718,605/x
3. Step 3: Cross multiply
   479,061x = 718,605 × 718,605
4. Step 4: Simplify right side
   479,061x = 516,393,146,025
5. Step 5: Solve for x
   x = 516,393,146,025/479,061
6. Step 6: Final answer
   x = 1,077,927.75