Finding the Third Proportional to 2,601.28 and 4,021.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.28 : 4,021.31 = 4,021.31 : x
2. Step 2: Convert to fraction form
   2,601.28/4,021.31 = 4,021.31/x
3. Step 3: Cross multiply
   2,601.28x = 4,021.31 × 4,021.31
4. Step 4: Simplify right side
   2,601.28x = 16,170,954.22
5. Step 5: Solve for x
   x = 16,170,954.22/2,601.28
6. Step 6: Final answer
   x = 6,216.53