Finding the Third Proportional to 87,336 and 187,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,336 : 187,123.50 = 187,123.50 : x
2. Step 2: Convert to fraction form
   87,336/187,123.50 = 187,123.50/x
3. Step 3: Cross multiply
   87,336x = 187,123.50 × 187,123.50
4. Step 4: Simplify right side
   87,336x = 35,015,204,252.25
5. Step 5: Solve for x
   x = 35,015,204,252.25/87,336
6. Step 6: Final answer
   x = 400,925.21