Finding the Third Proportional to 694,124 and 1,407,568

Step by Step Solution

1. Step 1: Write the proportion equation
   694,124 : 1,407,568 = 1,407,568 : x
2. Step 2: Convert to fraction form
   694,124/1,407,568 = 1,407,568/x
3. Step 3: Cross multiply
   694,124x = 1,407,568 × 1,407,568
4. Step 4: Simplify right side
   694,124x = 1,981,247,674,624
5. Step 5: Solve for x
   x = 1,981,247,674,624/694,124
6. Step 6: Final answer
   x = 2,854,313.75