Finding the Third Proportional to 11,287.69 and 12,502.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,287.69 : 12,502.69 = 12,502.69 : x
2. Step 2: Convert to fraction form
   11,287.69/12,502.69 = 12,502.69/x
3. Step 3: Cross multiply
   11,287.69x = 12,502.69 × 12,502.69
4. Step 4: Simplify right side
   11,287.69x = 156,317,194.72
5. Step 5: Solve for x
   x = 156,317,194.72/11,287.69
6. Step 6: Final answer
   x = 13,848.47