Finding the Third Proportional to 1,239,678 and 1,754,730

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,678 : 1,754,730 = 1,754,730 : x
2. Step 2: Convert to fraction form
   1,239,678/1,754,730 = 1,754,730/x
3. Step 3: Cross multiply
   1,239,678x = 1,754,730 × 1,754,730
4. Step 4: Simplify right side
   1,239,678x = 3,079,077,372,900
5. Step 5: Solve for x
   x = 3,079,077,372,900/1,239,678
6. Step 6: Final answer
   x = 2,483,771.89