Finding the Third Proportional to 11,219 and 12,443

Step by Step Solution

1. Step 1: Write the proportion equation
   11,219 : 12,443 = 12,443 : x
2. Step 2: Convert to fraction form
   11,219/12,443 = 12,443/x
3. Step 3: Cross multiply
   11,219x = 12,443 × 12,443
4. Step 4: Simplify right side
   11,219x = 154,828,249
5. Step 5: Solve for x
   x = 154,828,249/11,219
6. Step 6: Final answer
   x = 13,800.54