Finding the Third Proportional to 2,479,976 and 3,510,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,976 : 3,510,128 = 3,510,128 : x
2. Step 2: Convert to fraction form
   2,479,976/3,510,128 = 3,510,128/x
3. Step 3: Cross multiply
   2,479,976x = 3,510,128 × 3,510,128
4. Step 4: Simplify right side
   2,479,976x = 12,320,998,576,384
5. Step 5: Solve for x
   x = 12,320,998,576,384/2,479,976
6. Step 6: Final answer
   x = 4,968,192.67