Finding the Third Proportional to 813,904 and 1,245,048

Step by Step Solution

1. Step 1: Write the proportion equation
   813,904 : 1,245,048 = 1,245,048 : x
2. Step 2: Convert to fraction form
   813,904/1,245,048 = 1,245,048/x
3. Step 3: Cross multiply
   813,904x = 1,245,048 × 1,245,048
4. Step 4: Simplify right side
   813,904x = 1,550,144,522,304
5. Step 5: Solve for x
   x = 1,550,144,522,304/813,904
6. Step 6: Final answer
   x = 1,904,579.07