Finding the Third Proportional to 12,429 and 18,801

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429 : 18,801 = 18,801 : x
2. Step 2: Convert to fraction form
   12,429/18,801 = 18,801/x
3. Step 3: Cross multiply
   12,429x = 18,801 × 18,801
4. Step 4: Simplify right side
   12,429x = 353,477,601
5. Step 5: Solve for x
   x = 353,477,601/12,429
6. Step 6: Final answer
   x = 28,439.75