Finding the Third Proportional to 1,386 and 3,017.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386 : 3,017.25 = 3,017.25 : x
2. Step 2: Convert to fraction form
   1,386/3,017.25 = 3,017.25/x
3. Step 3: Cross multiply
   1,386x = 3,017.25 × 3,017.25
4. Step 4: Simplify right side
   1,386x = 9,103,797.56
5. Step 5: Solve for x
   x = 9,103,797.56/1,386
6. Step 6: Final answer
   x = 6,568.40