Finding the Third Proportional to 1,438,917 and 2,078,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,917 : 2,078,818 = 2,078,818 : x
2. Step 2: Convert to fraction form
   1,438,917/2,078,818 = 2,078,818/x
3. Step 3: Cross multiply
   1,438,917x = 2,078,818 × 2,078,818
4. Step 4: Simplify right side
   1,438,917x = 4,321,484,277,124
5. Step 5: Solve for x
   x = 4,321,484,277,124/1,438,917
6. Step 6: Final answer
   x = 3,003,289.47