Finding the Third Proportional to 2,688.75 and 4,004.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.75 : 4,004.25 = 4,004.25 : x
2. Step 2: Convert to fraction form
   2,688.75/4,004.25 = 4,004.25/x
3. Step 3: Cross multiply
   2,688.75x = 4,004.25 × 4,004.25
4. Step 4: Simplify right side
   2,688.75x = 16,034,018.06
5. Step 5: Solve for x
   x = 16,034,018.06/2,688.75
6. Step 6: Final answer
   x = 5,963.37