Finding the Third Proportional to 2,728,820 and 5,790,120

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728,820 : 5,790,120 = 5,790,120 : x
2. Step 2: Convert to fraction form
   2,728,820/5,790,120 = 5,790,120/x
3. Step 3: Cross multiply
   2,728,820x = 5,790,120 × 5,790,120
4. Step 4: Simplify right side
   2,728,820x = 33,525,489,614,400
5. Step 5: Solve for x
   x = 33,525,489,614,400/2,728,820
6. Step 6: Final answer
   x = 12,285,709.43