Finding the Third Proportional to 40,570 and 87,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,570 : 87,381.50 = 87,381.50 : x
2. Step 2: Convert to fraction form
   40,570/87,381.50 = 87,381.50/x
3. Step 3: Cross multiply
   40,570x = 87,381.50 × 87,381.50
4. Step 4: Simplify right side
   40,570x = 7,635,526,542.25
5. Step 5: Solve for x
   x = 7,635,526,542.25/40,570
6. Step 6: Final answer
   x = 188,206.22