Finding the Third Proportional to 2,256.50 and 3,500.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.50 : 3,500.75 = 3,500.75 : x
2. Step 2: Convert to fraction form
   2,256.50/3,500.75 = 3,500.75/x
3. Step 3: Cross multiply
   2,256.50x = 3,500.75 × 3,500.75
4. Step 4: Simplify right side
   2,256.50x = 12,255,250.56
5. Step 5: Solve for x
   x = 12,255,250.56/2,256.50
6. Step 6: Final answer
   x = 5,431.09