Finding the Third Proportional to 8,484 and 12,330

Step by Step Solution

1. Step 1: Write the proportion equation
   8,484 : 12,330 = 12,330 : x
2. Step 2: Convert to fraction form
   8,484/12,330 = 12,330/x
3. Step 3: Cross multiply
   8,484x = 12,330 × 12,330
4. Step 4: Simplify right side
   8,484x = 152,028,900
5. Step 5: Solve for x
   x = 152,028,900/8,484
6. Step 6: Final answer
   x = 17,919.48