Finding the Third Proportional to 6,616.13 and 10,531.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,616.13 : 10,531.69 = 10,531.69 : x
2. Step 2: Convert to fraction form
   6,616.13/10,531.69 = 10,531.69/x
3. Step 3: Cross multiply
   6,616.13x = 10,531.69 × 10,531.69
4. Step 4: Simplify right side
   6,616.13x = 110,916,441.60
5. Step 5: Solve for x
   x = 110,916,441.60/6,616.13
6. Step 6: Final answer
   x = 16,764.56