Finding the Third Proportional to 548,298 and 1,222,666

Step by Step Solution

1. Step 1: Write the proportion equation
   548,298 : 1,222,666 = 1,222,666 : x
2. Step 2: Convert to fraction form
   548,298/1,222,666 = 1,222,666/x
3. Step 3: Cross multiply
   548,298x = 1,222,666 × 1,222,666
4. Step 4: Simplify right side
   548,298x = 1,494,912,147,556
5. Step 5: Solve for x
   x = 1,494,912,147,556/548,298
6. Step 6: Final answer
   x = 2,726,459.24