Finding the Third Proportional to 1,256,742 and 2,712,744

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256,742 : 2,712,744 = 2,712,744 : x
2. Step 2: Convert to fraction form
   1,256,742/2,712,744 = 2,712,744/x
3. Step 3: Cross multiply
   1,256,742x = 2,712,744 × 2,712,744
4. Step 4: Simplify right side
   1,256,742x = 7,358,980,009,536
5. Step 5: Solve for x
   x = 7,358,980,009,536/1,256,742
6. Step 6: Final answer
   x = 5,855,601.24