Finding the Third Proportional to 18,452.81 and 39,531.38

Step by Step Solution

1. Step 1: Write the proportion equation
   18,452.81 : 39,531.38 = 39,531.38 : x
2. Step 2: Convert to fraction form
   18,452.81/39,531.38 = 39,531.38/x
3. Step 3: Cross multiply
   18,452.81x = 39,531.38 × 39,531.38
4. Step 4: Simplify right side
   18,452.81x = 1,562,729,609.39
5. Step 5: Solve for x
   x = 1,562,729,609.39/18,452.81
6. Step 6: Final answer
   x = 84,687.88