Finding the Third Proportional to 4,096.97 and 8,778.09

Step by Step Solution

1. Step 1: Write the proportion equation
   4,096.97 : 8,778.09 = 8,778.09 : x
2. Step 2: Convert to fraction form
   4,096.97/8,778.09 = 8,778.09/x
3. Step 3: Cross multiply
   4,096.97x = 8,778.09 × 8,778.09
4. Step 4: Simplify right side
   4,096.97x = 77,054,929.88
5. Step 5: Solve for x
   x = 77,054,929.88/4,096.97
6. Step 6: Final answer
   x = 18,807.79