Finding the Third Proportional to 280,760 and 614,008

Step by Step Solution

1. Step 1: Write the proportion equation
   280,760 : 614,008 = 614,008 : x
2. Step 2: Convert to fraction form
   280,760/614,008 = 614,008/x
3. Step 3: Cross multiply
   280,760x = 614,008 × 614,008
4. Step 4: Simplify right side
   280,760x = 377,005,824,064
5. Step 5: Solve for x
   x = 377,005,824,064/280,760
6. Step 6: Final answer
   x = 1,342,804.62