Finding the Third Proportional to 2,279,864 and 3,557,820

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279,864 : 3,557,820 = 3,557,820 : x
2. Step 2: Convert to fraction form
   2,279,864/3,557,820 = 3,557,820/x
3. Step 3: Cross multiply
   2,279,864x = 3,557,820 × 3,557,820
4. Step 4: Simplify right side
   2,279,864x = 12,658,083,152,400
5. Step 5: Solve for x
   x = 12,658,083,152,400/2,279,864
6. Step 6: Final answer
   x = 5,552,122.04