Finding the Third Proportional to 18,660.38 and 40,326.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,660.38 : 40,326.75 = 40,326.75 : x
2. Step 2: Convert to fraction form
   18,660.38/40,326.75 = 40,326.75/x
3. Step 3: Cross multiply
   18,660.38x = 40,326.75 × 40,326.75
4. Step 4: Simplify right side
   18,660.38x = 1,626,246,765.56
5. Step 5: Solve for x
   x = 1,626,246,765.56/18,660.38
6. Step 6: Final answer
   x = 87,149.74