Finding the Third Proportional to 3,072,816 and 4,077,540

Step by Step Solution

1. Step 1: Write the proportion equation
   3,072,816 : 4,077,540 = 4,077,540 : x
2. Step 2: Convert to fraction form
   3,072,816/4,077,540 = 4,077,540/x
3. Step 3: Cross multiply
   3,072,816x = 4,077,540 × 4,077,540
4. Step 4: Simplify right side
   3,072,816x = 16,626,332,451,600
5. Step 5: Solve for x
   x = 16,626,332,451,600/3,072,816
6. Step 6: Final answer
   x = 5,410,780.36