Finding the Third Proportional to 187,440 and 267,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,440 : 267,136.50 = 267,136.50 : x
2. Step 2: Convert to fraction form
   187,440/267,136.50 = 267,136.50/x
3. Step 3: Cross multiply
   187,440x = 267,136.50 × 267,136.50
4. Step 4: Simplify right side
   187,440x = 71,361,909,632.25
5. Step 5: Solve for x
   x = 71,361,909,632.25/187,440
6. Step 6: Final answer
   x = 380,718.68