Finding the Third Proportional to 39,633.75 and 86,617.13

Step by Step Solution

1. Step 1: Write the proportion equation
   39,633.75 : 86,617.13 = 86,617.13 : x
2. Step 2: Convert to fraction form
   39,633.75/86,617.13 = 86,617.13/x
3. Step 3: Cross multiply
   39,633.75x = 86,617.13 × 86,617.13
4. Step 4: Simplify right side
   39,633.75x = 7,502,526,343.27
5. Step 5: Solve for x
   x = 7,502,526,343.27/39,633.75
6. Step 6: Final answer
   x = 189,296.40