Finding the Third Proportional to 2,128 and 2,443

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128 : 2,443 = 2,443 : x
2. Step 2: Convert to fraction form
   2,128/2,443 = 2,443/x
3. Step 3: Cross multiply
   2,128x = 2,443 × 2,443
4. Step 4: Simplify right side
   2,128x = 5,968,249
5. Step 5: Solve for x
   x = 5,968,249/2,128
6. Step 6: Final answer
   x = 2,804.63