Finding the Third Proportional to 6,728.06 and 10,555.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,728.06 : 10,555.31 = 10,555.31 : x
2. Step 2: Convert to fraction form
   6,728.06/10,555.31 = 10,555.31/x
3. Step 3: Cross multiply
   6,728.06x = 10,555.31 × 10,555.31
4. Step 4: Simplify right side
   6,728.06x = 111,414,621.97
5. Step 5: Solve for x
   x = 111,414,621.97/6,728.06
6. Step 6: Final answer
   x = 16,559.69