Finding the Third Proportional to 1,179,568 and 1,779,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179,568 : 1,779,128 = 1,779,128 : x
2. Step 2: Convert to fraction form
   1,179,568/1,779,128 = 1,779,128/x
3. Step 3: Cross multiply
   1,179,568x = 1,779,128 × 1,779,128
4. Step 4: Simplify right side
   1,179,568x = 3,165,296,440,384
5. Step 5: Solve for x
   x = 3,165,296,440,384/1,179,568
6. Step 6: Final answer
   x = 2,683,437.02