Finding the Third Proportional to 3,405,586 and 5,273,620

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405,586 : 5,273,620 = 5,273,620 : x
2. Step 2: Convert to fraction form
   3,405,586/5,273,620 = 5,273,620/x
3. Step 3: Cross multiply
   3,405,586x = 5,273,620 × 5,273,620
4. Step 4: Simplify right side
   3,405,586x = 27,811,067,904,400
5. Step 5: Solve for x
   x = 27,811,067,904,400/3,405,586
6. Step 6: Final answer
   x = 8,166,309.09