Finding the Third Proportional to 2,781 and 5,987.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781 : 5,987.25 = 5,987.25 : x
2. Step 2: Convert to fraction form
   2,781/5,987.25 = 5,987.25/x
3. Step 3: Cross multiply
   2,781x = 5,987.25 × 5,987.25
4. Step 4: Simplify right side
   2,781x = 35,847,162.56
5. Step 5: Solve for x
   x = 35,847,162.56/2,781
6. Step 6: Final answer
   x = 12,890.03