Finding the Third Proportional to 13,900 and 20,483

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900 : 20,483 = 20,483 : x
2. Step 2: Convert to fraction form
   13,900/20,483 = 20,483/x
3. Step 3: Cross multiply
   13,900x = 20,483 × 20,483
4. Step 4: Simplify right side
   13,900x = 419,553,289
5. Step 5: Solve for x
   x = 419,553,289/13,900
6. Step 6: Final answer
   x = 30,183.69