Finding the Third Proportional to 405,724.50 and 631,548

Step by Step Solution

1. Step 1: Write the proportion equation
   405,724.50 : 631,548 = 631,548 : x
2. Step 2: Convert to fraction form
   405,724.50/631,548 = 631,548/x
3. Step 3: Cross multiply
   405,724.50x = 631,548 × 631,548
4. Step 4: Simplify right side
   405,724.50x = 398,852,876,304
5. Step 5: Solve for x
   x = 398,852,876,304/405,724.50
6. Step 6: Final answer
   x = 983,063.33