Finding the Third Proportional to 5,167.55 and 10,517.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,167.55 : 10,517.34 = 10,517.34 : x
2. Step 2: Convert to fraction form
   5,167.55/10,517.34 = 10,517.34/x
3. Step 3: Cross multiply
   5,167.55x = 10,517.34 × 10,517.34
4. Step 4: Simplify right side
   5,167.55x = 110,614,519.56
5. Step 5: Solve for x
   x = 110,614,519.56/5,167.55
6. Step 6: Final answer
   x = 21,405.62