Finding the Third Proportional to 3,485,172 and 5,019,629

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,172 : 5,019,629 = 5,019,629 : x
2. Step 2: Convert to fraction form
   3,485,172/5,019,629 = 5,019,629/x
3. Step 3: Cross multiply
   3,485,172x = 5,019,629 × 5,019,629
4. Step 4: Simplify right side
   3,485,172x = 25,196,675,297,641
5. Step 5: Solve for x
   x = 25,196,675,297,641/3,485,172
6. Step 6: Final answer
   x = 7,229,679.14