Finding the Third Proportional to 3,805,542 and 5,218,425

Step by Step Solution

1. Step 1: Write the proportion equation
   3,805,542 : 5,218,425 = 5,218,425 : x
2. Step 2: Convert to fraction form
   3,805,542/5,218,425 = 5,218,425/x
3. Step 3: Cross multiply
   3,805,542x = 5,218,425 × 5,218,425
4. Step 4: Simplify right side
   3,805,542x = 27,231,959,480,625
5. Step 5: Solve for x
   x = 27,231,959,480,625/3,805,542
6. Step 6: Final answer
   x = 7,155,868.86