Finding the Third Proportional to 1,331,478 and 2,928,150

Step by Step Solution

1. Step 1: Write the proportion equation
   1,331,478 : 2,928,150 = 2,928,150 : x
2. Step 2: Convert to fraction form
   1,331,478/2,928,150 = 2,928,150/x
3. Step 3: Cross multiply
   1,331,478x = 2,928,150 × 2,928,150
4. Step 4: Simplify right side
   1,331,478x = 8,574,062,422,500
5. Step 5: Solve for x
   x = 8,574,062,422,500/1,331,478
6. Step 6: Final answer
   x = 6,439,507.39