Finding the Third Proportional to 187,496 and 404,458

Step by Step Solution

1. Step 1: Write the proportion equation
   187,496 : 404,458 = 404,458 : x
2. Step 2: Convert to fraction form
   187,496/404,458 = 404,458/x
3. Step 3: Cross multiply
   187,496x = 404,458 × 404,458
4. Step 4: Simplify right side
   187,496x = 163,586,273,764
5. Step 5: Solve for x
   x = 163,586,273,764/187,496
6. Step 6: Final answer
   x = 872,478.74