Finding the Third Proportional to 1,424,078 and 2,136,399

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424,078 : 2,136,399 = 2,136,399 : x
2. Step 2: Convert to fraction form
   1,424,078/2,136,399 = 2,136,399/x
3. Step 3: Cross multiply
   1,424,078x = 2,136,399 × 2,136,399
4. Step 4: Simplify right side
   1,424,078x = 4,564,200,687,201
5. Step 5: Solve for x
   x = 4,564,200,687,201/1,424,078
6. Step 6: Final answer
   x = 3,205,021.56