Finding the Third Proportional to 1,272.90 and 2,673.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.90 : 2,673.95 = 2,673.95 : x
2. Step 2: Convert to fraction form
   1,272.90/2,673.95 = 2,673.95/x
3. Step 3: Cross multiply
   1,272.90x = 2,673.95 × 2,673.95
4. Step 4: Simplify right side
   1,272.90x = 7,150,004.42
5. Step 5: Solve for x
   x = 7,150,004.42/1,272.90
6. Step 6: Final answer
   x = 5,617.09