Finding the Third Proportional to 187,256.50 and 404,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,256.50 : 404,440.50 = 404,440.50 : x
2. Step 2: Convert to fraction form
   187,256.50/404,440.50 = 404,440.50/x
3. Step 3: Cross multiply
   187,256.50x = 404,440.50 × 404,440.50
4. Step 4: Simplify right side
   187,256.50x = 163,572,118,040.25
5. Step 5: Solve for x
   x = 163,572,118,040.25/187,256.50
6. Step 6: Final answer
   x = 873,519.04