Finding the Third Proportional to 18,425.25 and 39,759.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,425.25 : 39,759.75 = 39,759.75 : x
2. Step 2: Convert to fraction form
   18,425.25/39,759.75 = 39,759.75/x
3. Step 3: Cross multiply
   18,425.25x = 39,759.75 × 39,759.75
4. Step 4: Simplify right side
   18,425.25x = 1,580,837,720.06
5. Step 5: Solve for x
   x = 1,580,837,720.06/18,425.25
6. Step 6: Final answer
   x = 85,797.36