Finding the Third Proportional to 187,074 and 285,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,074 : 285,280.50 = 285,280.50 : x
2. Step 2: Convert to fraction form
   187,074/285,280.50 = 285,280.50/x
3. Step 3: Cross multiply
   187,074x = 285,280.50 × 285,280.50
4. Step 4: Simplify right side
   187,074x = 81,384,963,680.25
5. Step 5: Solve for x
   x = 81,384,963,680.25/187,074
6. Step 6: Final answer
   x = 435,041.55