Finding the Third Proportional to 187,116 and 287,593.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,116 : 287,593.50 = 287,593.50 : x
2. Step 2: Convert to fraction form
   187,116/287,593.50 = 287,593.50/x
3. Step 3: Cross multiply
   187,116x = 287,593.50 × 287,593.50
4. Step 4: Simplify right side
   187,116x = 82,710,021,242.25
5. Step 5: Solve for x
   x = 82,710,021,242.25/187,116
6. Step 6: Final answer
   x = 442,025.38