Finding the Third Proportional to 187,540 and 404,672

Step by Step Solution

1. Step 1: Write the proportion equation
   187,540 : 404,672 = 404,672 : x
2. Step 2: Convert to fraction form
   187,540/404,672 = 404,672/x
3. Step 3: Cross multiply
   187,540x = 404,672 × 404,672
4. Step 4: Simplify right side
   187,540x = 163,759,427,584
5. Step 5: Solve for x
   x = 163,759,427,584/187,540
6. Step 6: Final answer
   x = 873,197.33