Finding the Third Proportional to 5,781.38 and 12,440.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,781.38 : 12,440.25 = 12,440.25 : x
2. Step 2: Convert to fraction form
   5,781.38/12,440.25 = 12,440.25/x
3. Step 3: Cross multiply
   5,781.38x = 12,440.25 × 12,440.25
4. Step 4: Simplify right side
   5,781.38x = 154,759,820.06
5. Step 5: Solve for x
   x = 154,759,820.06/5,781.38
6. Step 6: Final answer
   x = 26,768.69