Finding the Third Proportional to 11,259 and 12,447

Step by Step Solution

1. Step 1: Write the proportion equation
   11,259 : 12,447 = 12,447 : x
2. Step 2: Convert to fraction form
   11,259/12,447 = 12,447/x
3. Step 3: Cross multiply
   11,259x = 12,447 × 12,447
4. Step 4: Simplify right side
   11,259x = 154,927,809
5. Step 5: Solve for x
   x = 154,927,809/11,259
6. Step 6: Final answer
   x = 13,760.35