Finding the Third Proportional to 31,132.48 and 66,800.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,132.48 : 66,800.32 = 66,800.32 : x
2. Step 2: Convert to fraction form
   31,132.48/66,800.32 = 66,800.32/x
3. Step 3: Cross multiply
   31,132.48x = 66,800.32 × 66,800.32
4. Step 4: Simplify right side
   31,132.48x = 4,462,282,793.85
5. Step 5: Solve for x
   x = 4,462,282,793.85/31,132.48
6. Step 6: Final answer
   x = 143,332.09