Finding the Third Proportional to 13,449 and 20,150

Step by Step Solution

1. Step 1: Write the proportion equation
   13,449 : 20,150 = 20,150 : x
2. Step 2: Convert to fraction form
   13,449/20,150 = 20,150/x
3. Step 3: Cross multiply
   13,449x = 20,150 × 20,150
4. Step 4: Simplify right side
   13,449x = 406,022,500
5. Step 5: Solve for x
   x = 406,022,500/13,449
6. Step 6: Final answer
   x = 30,189.79