Finding the Third Proportional to 187,431 and 404,799

Step by Step Solution

1. Step 1: Write the proportion equation
   187,431 : 404,799 = 404,799 : x
2. Step 2: Convert to fraction form
   187,431/404,799 = 404,799/x
3. Step 3: Cross multiply
   187,431x = 404,799 × 404,799
4. Step 4: Simplify right side
   187,431x = 163,862,230,401
5. Step 5: Solve for x
   x = 163,862,230,401/187,431
6. Step 6: Final answer
   x = 874,253.62