Finding the Third Proportional to 643,952 and 1,407,568

Step by Step Solution

1. Step 1: Write the proportion equation
   643,952 : 1,407,568 = 1,407,568 : x
2. Step 2: Convert to fraction form
   643,952/1,407,568 = 1,407,568/x
3. Step 3: Cross multiply
   643,952x = 1,407,568 × 1,407,568
4. Step 4: Simplify right side
   643,952x = 1,981,247,674,624
5. Step 5: Solve for x
   x = 1,981,247,674,624/643,952
6. Step 6: Final answer
   x = 3,076,700.86