Finding the Third Proportional to 494,638 and 741,630

Step by Step Solution

1. Step 1: Write the proportion equation
   494,638 : 741,630 = 741,630 : x
2. Step 2: Convert to fraction form
   494,638/741,630 = 741,630/x
3. Step 3: Cross multiply
   494,638x = 741,630 × 741,630
4. Step 4: Simplify right side
   494,638x = 550,015,056,900
5. Step 5: Solve for x
   x = 550,015,056,900/494,638
6. Step 6: Final answer
   x = 1,111,954.72