Finding the Third Proportional to 187,572 and 404,468

Step by Step Solution

1. Step 1: Write the proportion equation
   187,572 : 404,468 = 404,468 : x
2. Step 2: Convert to fraction form
   187,572/404,468 = 404,468/x
3. Step 3: Cross multiply
   187,572x = 404,468 × 404,468
4. Step 4: Simplify right side
   187,572x = 163,594,363,024
5. Step 5: Solve for x
   x = 163,594,363,024/187,572
6. Step 6: Final answer
   x = 872,168.36