Finding the Third Proportional to 39,386.25 and 86,426.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,386.25 : 86,426.25 = 86,426.25 : x
2. Step 2: Convert to fraction form
   39,386.25/86,426.25 = 86,426.25/x
3. Step 3: Cross multiply
   39,386.25x = 86,426.25 × 86,426.25
4. Step 4: Simplify right side
   39,386.25x = 7,469,496,689.06
5. Step 5: Solve for x
   x = 7,469,496,689.06/39,386.25
6. Step 6: Final answer
   x = 189,647.32