Finding the Third Proportional to 2,519,661 and 3,878,111

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519,661 : 3,878,111 = 3,878,111 : x
2. Step 2: Convert to fraction form
   2,519,661/3,878,111 = 3,878,111/x
3. Step 3: Cross multiply
   2,519,661x = 3,878,111 × 3,878,111
4. Step 4: Simplify right side
   2,519,661x = 15,039,744,928,321
5. Step 5: Solve for x
   x = 15,039,744,928,321/2,519,661
6. Step 6: Final answer
   x = 5,968,955.72