Finding the Third Proportional to 2,155.78 and 3,250.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.78 : 3,250.55 = 3,250.55 : x
2. Step 2: Convert to fraction form
   2,155.78/3,250.55 = 3,250.55/x
3. Step 3: Cross multiply
   2,155.78x = 3,250.55 × 3,250.55
4. Step 4: Simplify right side
   2,155.78x = 10,566,054.99
5. Step 5: Solve for x
   x = 10,566,054.99/2,155.78
6. Step 6: Final answer
   x = 4,901.26