Finding the Third Proportional to 301,768 and 661,568

Step by Step Solution

1. Step 1: Write the proportion equation
   301,768 : 661,568 = 661,568 : x
2. Step 2: Convert to fraction form
   301,768/661,568 = 661,568/x
3. Step 3: Cross multiply
   301,768x = 661,568 × 661,568
4. Step 4: Simplify right side
   301,768x = 437,672,218,624
5. Step 5: Solve for x
   x = 437,672,218,624/301,768
6. Step 6: Final answer
   x = 1,450,359.94