Finding the Third Proportional to 57,242 and 87,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,242 : 87,571.50 = 87,571.50 : x
2. Step 2: Convert to fraction form
   57,242/87,571.50 = 87,571.50/x
3. Step 3: Cross multiply
   57,242x = 87,571.50 × 87,571.50
4. Step 4: Simplify right side
   57,242x = 7,668,767,612.25
5. Step 5: Solve for x
   x = 7,668,767,612.25/57,242
6. Step 6: Final answer
   x = 133,970.99