Finding the Third Proportional to 1,255.50 and 3,020.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.50 : 3,020.25 = 3,020.25 : x
2. Step 2: Convert to fraction form
   1,255.50/3,020.25 = 3,020.25/x
3. Step 3: Cross multiply
   1,255.50x = 3,020.25 × 3,020.25
4. Step 4: Simplify right side
   1,255.50x = 9,121,910.06
5. Step 5: Solve for x
   x = 9,121,910.06/1,255.50
6. Step 6: Final answer
   x = 7,265.56