Finding the Third Proportional to 1,609,734 and 2,178,405

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609,734 : 2,178,405 = 2,178,405 : x
2. Step 2: Convert to fraction form
   1,609,734/2,178,405 = 2,178,405/x
3. Step 3: Cross multiply
   1,609,734x = 2,178,405 × 2,178,405
4. Step 4: Simplify right side
   1,609,734x = 4,745,448,344,025
5. Step 5: Solve for x
   x = 4,745,448,344,025/1,609,734
6. Step 6: Final answer
   x = 2,947,970.50