Finding the Third Proportional to 605,861 and 1,274,398

Step by Step Solution

1. Step 1: Write the proportion equation
   605,861 : 1,274,398 = 1,274,398 : x
2. Step 2: Convert to fraction form
   605,861/1,274,398 = 1,274,398/x
3. Step 3: Cross multiply
   605,861x = 1,274,398 × 1,274,398
4. Step 4: Simplify right side
   605,861x = 1,624,090,262,404
5. Step 5: Solve for x
   x = 1,624,090,262,404/605,861
6. Step 6: Final answer
   x = 2,680,631.80