Finding the Third Proportional to 41,866.50 and 86,677.50

Step by Step Solution

1. Step 1: Write the proportion equation
   41,866.50 : 86,677.50 = 86,677.50 : x
2. Step 2: Convert to fraction form
   41,866.50/86,677.50 = 86,677.50/x
3. Step 3: Cross multiply
   41,866.50x = 86,677.50 × 86,677.50
4. Step 4: Simplify right side
   41,866.50x = 7,512,989,006.25
5. Step 5: Solve for x
   x = 7,512,989,006.25/41,866.50
6. Step 6: Final answer
   x = 179,451.09