Finding the Third Proportional to 2,021,136 and 4,322,320

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,136 : 4,322,320 = 4,322,320 : x
2. Step 2: Convert to fraction form
   2,021,136/4,322,320 = 4,322,320/x
3. Step 3: Cross multiply
   2,021,136x = 4,322,320 × 4,322,320
4. Step 4: Simplify right side
   2,021,136x = 18,682,450,182,400
5. Step 5: Solve for x
   x = 18,682,450,182,400/2,021,136
6. Step 6: Final answer
   x = 9,243,539.37