Finding the Third Proportional to 41,899.50 and 86,019.75

Step by Step Solution

1. Step 1: Write the proportion equation
   41,899.50 : 86,019.75 = 86,019.75 : x
2. Step 2: Convert to fraction form
   41,899.50/86,019.75 = 86,019.75/x
3. Step 3: Cross multiply
   41,899.50x = 86,019.75 × 86,019.75
4. Step 4: Simplify right side
   41,899.50x = 7,399,397,390.06
5. Step 5: Solve for x
   x = 7,399,397,390.06/41,899.50
6. Step 6: Final answer
   x = 176,598.70