Finding the Third Proportional to 280,842 and 608,974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   280,842 : 608,974.50 = 608,974.50 : x
2. Step 2: Convert to fraction form
   280,842/608,974.50 = 608,974.50/x
3. Step 3: Cross multiply
   280,842x = 608,974.50 × 608,974.50
4. Step 4: Simplify right side
   280,842x = 370,849,941,650.25
5. Step 5: Solve for x
   x = 370,849,941,650.25/280,842
6. Step 6: Final answer
   x = 1,320,493.17