Finding the Third Proportional to 4,342,918 and 9,542,412

Step by Step Solution

1. Step 1: Write the proportion equation
   4,342,918 : 9,542,412 = 9,542,412 : x
2. Step 2: Convert to fraction form
   4,342,918/9,542,412 = 9,542,412/x
3. Step 3: Cross multiply
   4,342,918x = 9,542,412 × 9,542,412
4. Step 4: Simplify right side
   4,342,918x = 91,057,626,777,744
5. Step 5: Solve for x
   x = 91,057,626,777,744/4,342,918
6. Step 6: Final answer
   x = 20,966,922.88