Finding the Third Proportional to 2,947,290 and 4,431,871

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947,290 : 4,431,871 = 4,431,871 : x
2. Step 2: Convert to fraction form
   2,947,290/4,431,871 = 4,431,871/x
3. Step 3: Cross multiply
   2,947,290x = 4,431,871 × 4,431,871
4. Step 4: Simplify right side
   2,947,290x = 19,641,480,560,641
5. Step 5: Solve for x
   x = 19,641,480,560,641/2,947,290
6. Step 6: Final answer
   x = 6,664,251.08