Finding the Third Proportional to 40,078.13 and 86,578.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,078.13 : 86,578.88 = 86,578.88 : x
2. Step 2: Convert to fraction form
   40,078.13/86,578.88 = 86,578.88/x
3. Step 3: Cross multiply
   40,078.13x = 86,578.88 × 86,578.88
4. Step 4: Simplify right side
   40,078.13x = 7,495,901,596.27
5. Step 5: Solve for x
   x = 7,495,901,596.27/40,078.13
6. Step 6: Final answer
   x = 187,032.24