Finding the Third Proportional to 12,311.37 and 17,421.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,311.37 : 17,421.96 = 17,421.96 : x
2. Step 2: Convert to fraction form
   12,311.37/17,421.96 = 17,421.96/x
3. Step 3: Cross multiply
   12,311.37x = 17,421.96 × 17,421.96
4. Step 4: Simplify right side
   12,311.37x = 303,524,722.91
5. Step 5: Solve for x
   x = 303,524,722.91/12,311.37
6. Step 6: Final answer
   x = 24,654.02