Finding the Third Proportional to 39,505.13 and 86,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,505.13 : 86,111.25 = 86,111.25 : x
2. Step 2: Convert to fraction form
   39,505.13/86,111.25 = 86,111.25/x
3. Step 3: Cross multiply
   39,505.13x = 86,111.25 × 86,111.25
4. Step 4: Simplify right side
   39,505.13x = 7,415,147,376.56
5. Step 5: Solve for x
   x = 7,415,147,376.56/39,505.13
6. Step 6: Final answer
   x = 187,700.90