Finding the Third Proportional to 2,015,566 and 4,385,405

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,566 : 4,385,405 = 4,385,405 : x
2. Step 2: Convert to fraction form
   2,015,566/4,385,405 = 4,385,405/x
3. Step 3: Cross multiply
   2,015,566x = 4,385,405 × 4,385,405
4. Step 4: Simplify right side
   2,015,566x = 19,231,777,014,025
5. Step 5: Solve for x
   x = 19,231,777,014,025/2,015,566
6. Step 6: Final answer
   x = 9,541,626.03