Finding the Third Proportional to 4,212,198 and 8,214,444

Step by Step Solution

1. Step 1: Write the proportion equation
   4,212,198 : 8,214,444 = 8,214,444 : x
2. Step 2: Convert to fraction form
   4,212,198/8,214,444 = 8,214,444/x
3. Step 3: Cross multiply
   4,212,198x = 8,214,444 × 8,214,444
4. Step 4: Simplify right side
   4,212,198x = 67,477,090,229,136
5. Step 5: Solve for x
   x = 67,477,090,229,136/4,212,198
6. Step 6: Final answer
   x = 16,019,448.81