Finding the Third Proportional to 402,314 and 607,570

Step by Step Solution

1. Step 1: Write the proportion equation
   402,314 : 607,570 = 607,570 : x
2. Step 2: Convert to fraction form
   402,314/607,570 = 607,570/x
3. Step 3: Cross multiply
   402,314x = 607,570 × 607,570
4. Step 4: Simplify right side
   402,314x = 369,141,304,900
5. Step 5: Solve for x
   x = 369,141,304,900/402,314
6. Step 6: Final answer
   x = 917,545.26