Finding the Third Proportional to 1,272 and 1,443

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272 : 1,443 = 1,443 : x
2. Step 2: Convert to fraction form
   1,272/1,443 = 1,443/x
3. Step 3: Cross multiply
   1,272x = 1,443 × 1,443
4. Step 4: Simplify right side
   1,272x = 2,082,249
5. Step 5: Solve for x
   x = 2,082,249/1,272
6. Step 6: Final answer
   x = 1,636.99