Finding the Third Proportional to 2,145,872 and 3,007,878

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,872 : 3,007,878 = 3,007,878 : x
2. Step 2: Convert to fraction form
   2,145,872/3,007,878 = 3,007,878/x
3. Step 3: Cross multiply
   2,145,872x = 3,007,878 × 3,007,878
4. Step 4: Simplify right side
   2,145,872x = 9,047,330,062,884
5. Step 5: Solve for x
   x = 9,047,330,062,884/2,145,872
6. Step 6: Final answer
   x = 4,216,155.51