Finding the Third Proportional to 14,488.50 and 20,679.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,488.50 : 20,679.69 = 20,679.69 : x
2. Step 2: Convert to fraction form
   14,488.50/20,679.69 = 20,679.69/x
3. Step 3: Cross multiply
   14,488.50x = 20,679.69 × 20,679.69
4. Step 4: Simplify right side
   14,488.50x = 427,649,475.10
5. Step 5: Solve for x
   x = 427,649,475.10/14,488.50
6. Step 6: Final answer
   x = 29,516.48