Finding the Third Proportional to 13,662.42 and 20,506.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,662.42 : 20,506.92 = 20,506.92 : x
2. Step 2: Convert to fraction form
   13,662.42/20,506.92 = 20,506.92/x
3. Step 3: Cross multiply
   13,662.42x = 20,506.92 × 20,506.92
4. Step 4: Simplify right side
   13,662.42x = 420,533,844.79
5. Step 5: Solve for x
   x = 420,533,844.79/13,662.42
6. Step 6: Final answer
   x = 30,780.33