Finding the Third Proportional to 1,291.50 and 3,019.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.50 : 3,019.13 = 3,019.13 : x
2. Step 2: Convert to fraction form
   1,291.50/3,019.13 = 3,019.13/x
3. Step 3: Cross multiply
   1,291.50x = 3,019.13 × 3,019.13
4. Step 4: Simplify right side
   1,291.50x = 9,115,115.77
5. Step 5: Solve for x
   x = 9,115,115.77/1,291.50
6. Step 6: Final answer
   x = 7,057.77