Finding the Third Proportional to 2,125.69 and 3,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,125.69 : 3,256.31 = 3,256.31 : x
2. Step 2: Convert to fraction form
   2,125.69/3,256.31 = 3,256.31/x
3. Step 3: Cross multiply
   2,125.69x = 3,256.31 × 3,256.31
4. Step 4: Simplify right side
   2,125.69x = 10,603,571.10
5. Step 5: Solve for x
   x = 10,603,571.10/2,125.69
6. Step 6: Final answer
   x = 4,988.30