Finding the Third Proportional to 6,809.06 and 10,699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,809.06 : 10,699.31 = 10,699.31 : x
2. Step 2: Convert to fraction form
   6,809.06/10,699.31 = 10,699.31/x
3. Step 3: Cross multiply
   6,809.06x = 10,699.31 × 10,699.31
4. Step 4: Simplify right side
   6,809.06x = 114,475,287.97
5. Step 5: Solve for x
   x = 114,475,287.97/6,809.06
6. Step 6: Final answer
   x = 16,812.20