Finding the Third Proportional to 2,116,739 and 3,179,878

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,739 : 3,179,878 = 3,179,878 : x
2. Step 2: Convert to fraction form
   2,116,739/3,179,878 = 3,179,878/x
3. Step 3: Cross multiply
   2,116,739x = 3,179,878 × 3,179,878
4. Step 4: Simplify right side
   2,116,739x = 10,111,624,094,884
5. Step 5: Solve for x
   x = 10,111,624,094,884/2,116,739
6. Step 6: Final answer
   x = 4,776,982.00