Finding the Third Proportional to 557,394 and 1,221,096

Step by Step Solution

1. Step 1: Write the proportion equation
   557,394 : 1,221,096 = 1,221,096 : x
2. Step 2: Convert to fraction form
   557,394/1,221,096 = 1,221,096/x
3. Step 3: Cross multiply
   557,394x = 1,221,096 × 1,221,096
4. Step 4: Simplify right side
   557,394x = 1,491,075,441,216
5. Step 5: Solve for x
   x = 1,491,075,441,216/557,394
6. Step 6: Final answer
   x = 2,675,083.41