Finding the Third Proportional to 10,443 and 13,230

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443 : 13,230 = 13,230 : x
2. Step 2: Convert to fraction form
   10,443/13,230 = 13,230/x
3. Step 3: Cross multiply
   10,443x = 13,230 × 13,230
4. Step 4: Simplify right side
   10,443x = 175,032,900
5. Step 5: Solve for x
   x = 175,032,900/10,443
6. Step 6: Final answer
   x = 16,760.79