Finding the Third Proportional to 2,947,320 and 4,431,912

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947,320 : 4,431,912 = 4,431,912 : x
2. Step 2: Convert to fraction form
   2,947,320/4,431,912 = 4,431,912/x
3. Step 3: Cross multiply
   2,947,320x = 4,431,912 × 4,431,912
4. Step 4: Simplify right side
   2,947,320x = 19,641,843,975,744
5. Step 5: Solve for x
   x = 19,641,843,975,744/2,947,320
6. Step 6: Final answer
   x = 6,664,306.55