Finding the Third Proportional to 187,564 and 404,452

Step by Step Solution

1. Step 1: Write the proportion equation
   187,564 : 404,452 = 404,452 : x
2. Step 2: Convert to fraction form
   187,564/404,452 = 404,452/x
3. Step 3: Cross multiply
   187,564x = 404,452 × 404,452
4. Step 4: Simplify right side
   187,564x = 163,581,420,304
5. Step 5: Solve for x
   x = 163,581,420,304/187,564
6. Step 6: Final answer
   x = 872,136.55