Finding the Third Proportional to 1,440.28 and 3,085.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.28 : 3,085.59 = 3,085.59 : x
2. Step 2: Convert to fraction form
   1,440.28/3,085.59 = 3,085.59/x
3. Step 3: Cross multiply
   1,440.28x = 3,085.59 × 3,085.59
4. Step 4: Simplify right side
   1,440.28x = 9,520,888.79
5. Step 5: Solve for x
   x = 9,520,888.79/1,440.28
6. Step 6: Final answer
   x = 6,610.44