Finding the Third Proportional to 3,294,019 and 7,137,878

Step by Step Solution

1. Step 1: Write the proportion equation
   3,294,019 : 7,137,878 = 7,137,878 : x
2. Step 2: Convert to fraction form
   3,294,019/7,137,878 = 7,137,878/x
3. Step 3: Cross multiply
   3,294,019x = 7,137,878 × 7,137,878
4. Step 4: Simplify right side
   3,294,019x = 50,949,302,342,884
5. Step 5: Solve for x
   x = 50,949,302,342,884/3,294,019
6. Step 6: Final answer
   x = 15,467,215.68