Finding the Third Proportional to 605,865 and 1,274,405

Step by Step Solution

1. Step 1: Write the proportion equation
   605,865 : 1,274,405 = 1,274,405 : x
2. Step 2: Convert to fraction form
   605,865/1,274,405 = 1,274,405/x
3. Step 3: Cross multiply
   605,865x = 1,274,405 × 1,274,405
4. Step 4: Simplify right side
   605,865x = 1,624,108,104,025
5. Step 5: Solve for x
   x = 1,624,108,104,025/605,865
6. Step 6: Final answer
   x = 2,680,643.55