Finding the Third Proportional to 40,558 and 87,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,558 : 87,356.50 = 87,356.50 : x
2. Step 2: Convert to fraction form
   40,558/87,356.50 = 87,356.50/x
3. Step 3: Cross multiply
   40,558x = 87,356.50 × 87,356.50
4. Step 4: Simplify right side
   40,558x = 7,631,158,092.25
5. Step 5: Solve for x
   x = 7,631,158,092.25/40,558
6. Step 6: Final answer
   x = 188,154.20