Finding the Third Proportional to 187,702.50 and 404,931

Step by Step Solution

1. Step 1: Write the proportion equation
   187,702.50 : 404,931 = 404,931 : x
2. Step 2: Convert to fraction form
   187,702.50/404,931 = 404,931/x
3. Step 3: Cross multiply
   187,702.50x = 404,931 × 404,931
4. Step 4: Simplify right side
   187,702.50x = 163,969,114,761
5. Step 5: Solve for x
   x = 163,969,114,761/187,702.50
6. Step 6: Final answer
   x = 873,558.50