Finding the Third Proportional to 5,865.75 and 12,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,865.75 : 12,870.75 = 12,870.75 : x
2. Step 2: Convert to fraction form
   5,865.75/12,870.75 = 12,870.75/x
3. Step 3: Cross multiply
   5,865.75x = 12,870.75 × 12,870.75
4. Step 4: Simplify right side
   5,865.75x = 165,656,205.56
5. Step 5: Solve for x
   x = 165,656,205.56/5,865.75
6. Step 6: Final answer
   x = 28,241.27