Finding the Third Proportional to 6,502.78 and 10,917.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,502.78 : 10,917.28 = 10,917.28 : x
2. Step 2: Convert to fraction form
   6,502.78/10,917.28 = 10,917.28/x
3. Step 3: Cross multiply
   6,502.78x = 10,917.28 × 10,917.28
4. Step 4: Simplify right side
   6,502.78x = 119,187,029.89
5. Step 5: Solve for x
   x = 119,187,029.89/6,502.78
6. Step 6: Final answer
   x = 18,328.62