Finding the Third Proportional to 1,438,976 and 2,078,910

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,976 : 2,078,910 = 2,078,910 : x
2. Step 2: Convert to fraction form
   1,438,976/2,078,910 = 2,078,910/x
3. Step 3: Cross multiply
   1,438,976x = 2,078,910 × 2,078,910
4. Step 4: Simplify right side
   1,438,976x = 4,321,866,788,100
5. Step 5: Solve for x
   x = 4,321,866,788,100/1,438,976
6. Step 6: Final answer
   x = 3,003,432.15