Finding the Third Proportional to 1,878,144 and 3,911,936

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878,144 : 3,911,936 = 3,911,936 : x
2. Step 2: Convert to fraction form
   1,878,144/3,911,936 = 3,911,936/x
3. Step 3: Cross multiply
   1,878,144x = 3,911,936 × 3,911,936
4. Step 4: Simplify right side
   1,878,144x = 15,303,243,268,096
5. Step 5: Solve for x
   x = 15,303,243,268,096/1,878,144
6. Step 6: Final answer
   x = 8,148,067.06