Finding the Third Proportional to 1,620,820 and 3,527,048

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,820 : 3,527,048 = 3,527,048 : x
2. Step 2: Convert to fraction form
   1,620,820/3,527,048 = 3,527,048/x
3. Step 3: Cross multiply
   1,620,820x = 3,527,048 × 3,527,048
4. Step 4: Simplify right side
   1,620,820x = 12,440,067,594,304
5. Step 5: Solve for x
   x = 12,440,067,594,304/1,620,820
6. Step 6: Final answer
   x = 7,675,169.11