Finding the Third Proportional to 2,507.06 and 5,440.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.06 : 5,440.78 = 5,440.78 : x
2. Step 2: Convert to fraction form
   2,507.06/5,440.78 = 5,440.78/x
3. Step 3: Cross multiply
   2,507.06x = 5,440.78 × 5,440.78
4. Step 4: Simplify right side
   2,507.06x = 29,602,100.61
5. Step 5: Solve for x
   x = 29,602,100.61/2,507.06
6. Step 6: Final answer
   x = 11,807.48