Finding the Third Proportional to 612,568 and 1,297,872

Step by Step Solution

1. Step 1: Write the proportion equation
   612,568 : 1,297,872 = 1,297,872 : x
2. Step 2: Convert to fraction form
   612,568/1,297,872 = 1,297,872/x
3. Step 3: Cross multiply
   612,568x = 1,297,872 × 1,297,872
4. Step 4: Simplify right side
   612,568x = 1,684,471,728,384
5. Step 5: Solve for x
   x = 1,684,471,728,384/612,568
6. Step 6: Final answer
   x = 2,749,852.63