Finding the Third Proportional to 2,187.28 and 3,187.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.28 : 3,187.27 = 3,187.27 : x
2. Step 2: Convert to fraction form
   2,187.28/3,187.27 = 3,187.27/x
3. Step 3: Cross multiply
   2,187.28x = 3,187.27 × 3,187.27
4. Step 4: Simplify right side
   2,187.28x = 10,158,662.16
5. Step 5: Solve for x
   x = 10,158,662.16/2,187.28
6. Step 6: Final answer
   x = 4,644.42