Finding the Third Proportional to 1,780,136 and 3,944,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,136 : 3,944,640 = 3,944,640 : x
2. Step 2: Convert to fraction form
   1,780,136/3,944,640 = 3,944,640/x
3. Step 3: Cross multiply
   1,780,136x = 3,944,640 × 3,944,640
4. Step 4: Simplify right side
   1,780,136x = 15,560,184,729,600
5. Step 5: Solve for x
   x = 15,560,184,729,600/1,780,136
6. Step 6: Final answer
   x = 8,741,008.96