Finding the Third Proportional to 6,399.56 and 13,310.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.56 : 13,310.16 = 13,310.16 : x
2. Step 2: Convert to fraction form
   6,399.56/13,310.16 = 13,310.16/x
3. Step 3: Cross multiply
   6,399.56x = 13,310.16 × 13,310.16
4. Step 4: Simplify right side
   6,399.56x = 177,160,259.40
5. Step 5: Solve for x
   x = 177,160,259.40/6,399.56
6. Step 6: Final answer
   x = 27,683.18