Finding the Third Proportional to 2,021,138 and 4,322,324

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,138 : 4,322,324 = 4,322,324 : x
2. Step 2: Convert to fraction form
   2,021,138/4,322,324 = 4,322,324/x
3. Step 3: Cross multiply
   2,021,138x = 4,322,324 × 4,322,324
4. Step 4: Simplify right side
   2,021,138x = 18,682,484,760,976
5. Step 5: Solve for x
   x = 18,682,484,760,976/2,021,138
6. Step 6: Final answer
   x = 9,243,547.33