Finding the Third Proportional to 1,440.56 and 3,144.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.56 : 3,144.38 = 3,144.38 : x
2. Step 2: Convert to fraction form
   1,440.56/3,144.38 = 3,144.38/x
3. Step 3: Cross multiply
   1,440.56x = 3,144.38 × 3,144.38
4. Step 4: Simplify right side
   1,440.56x = 9,887,094.14
5. Step 5: Solve for x
   x = 9,887,094.14/1,440.56
6. Step 6: Final answer
   x = 6,863.36