Finding the Third Proportional to 280,068 and 614,568

Step by Step Solution

1. Step 1: Write the proportion equation
   280,068 : 614,568 = 614,568 : x
2. Step 2: Convert to fraction form
   280,068/614,568 = 614,568/x
3. Step 3: Cross multiply
   280,068x = 614,568 × 614,568
4. Step 4: Simplify right side
   280,068x = 377,693,826,624
5. Step 5: Solve for x
   x = 377,693,826,624/280,068
6. Step 6: Final answer
   x = 1,348,579.01