Finding the Third Proportional to 1,272.16 and 2,761.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.16 : 2,761.88 = 2,761.88 : x
2. Step 2: Convert to fraction form
   1,272.16/2,761.88 = 2,761.88/x
3. Step 3: Cross multiply
   1,272.16x = 2,761.88 × 2,761.88
4. Step 4: Simplify right side
   1,272.16x = 7,628,002.06
5. Step 5: Solve for x
   x = 7,628,002.06/1,272.16
6. Step 6: Final answer
   x = 5,996.08