Finding the Third Proportional to 6,868.13 and 10,609.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,868.13 : 10,609.31 = 10,609.31 : x
2. Step 2: Convert to fraction form
   6,868.13/10,609.31 = 10,609.31/x
3. Step 3: Cross multiply
   6,868.13x = 10,609.31 × 10,609.31
4. Step 4: Simplify right side
   6,868.13x = 112,557,511.72
5. Step 5: Solve for x
   x = 112,557,511.72/6,868.13
6. Step 6: Final answer
   x = 16,388.39