Finding the Third Proportional to 31,613.73 and 66,150.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,613.73 : 66,150.42 = 66,150.42 : x
2. Step 2: Convert to fraction form
   31,613.73/66,150.42 = 66,150.42/x
3. Step 3: Cross multiply
   31,613.73x = 66,150.42 × 66,150.42
4. Step 4: Simplify right side
   31,613.73x = 4,375,878,314.24
5. Step 5: Solve for x
   x = 4,375,878,314.24/31,613.73
6. Step 6: Final answer
   x = 138,417.02