Finding the Third Proportional to 280,876 and 601,118

Step by Step Solution

1. Step 1: Write the proportion equation
   280,876 : 601,118 = 601,118 : x
2. Step 2: Convert to fraction form
   280,876/601,118 = 601,118/x
3. Step 3: Cross multiply
   280,876x = 601,118 × 601,118
4. Step 4: Simplify right side
   280,876x = 361,342,849,924
5. Step 5: Solve for x
   x = 361,342,849,924/280,876
6. Step 6: Final answer
   x = 1,286,485.32