Finding the Third Proportional to 1,438,647 and 2,148,087

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,647 : 2,148,087 = 2,148,087 : x
2. Step 2: Convert to fraction form
   1,438,647/2,148,087 = 2,148,087/x
3. Step 3: Cross multiply
   1,438,647x = 2,148,087 × 2,148,087
4. Step 4: Simplify right side
   1,438,647x = 4,614,277,759,569
5. Step 5: Solve for x
   x = 4,614,277,759,569/1,438,647
6. Step 6: Final answer
   x = 3,207,373.15