Finding the Third Proportional to 11,348 and 12,212

Step by Step Solution

1. Step 1: Write the proportion equation
   11,348 : 12,212 = 12,212 : x
2. Step 2: Convert to fraction form
   11,348/12,212 = 12,212/x
3. Step 3: Cross multiply
   11,348x = 12,212 × 12,212
4. Step 4: Simplify right side
   11,348x = 149,132,944
5. Step 5: Solve for x
   x = 149,132,944/11,348
6. Step 6: Final answer
   x = 13,141.78