Finding the Third Proportional to 39,836.25 and 86,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,836.25 : 86,917.50 = 86,917.50 : x
2. Step 2: Convert to fraction form
   39,836.25/86,917.50 = 86,917.50/x
3. Step 3: Cross multiply
   39,836.25x = 86,917.50 × 86,917.50
4. Step 4: Simplify right side
   39,836.25x = 7,554,651,806.25
5. Step 5: Solve for x
   x = 7,554,651,806.25/39,836.25
6. Step 6: Final answer
   x = 189,642.64