Finding the Third Proportional to 558,938 and 1,212,404

Step by Step Solution

1. Step 1: Write the proportion equation
   558,938 : 1,212,404 = 1,212,404 : x
2. Step 2: Convert to fraction form
   558,938/1,212,404 = 1,212,404/x
3. Step 3: Cross multiply
   558,938x = 1,212,404 × 1,212,404
4. Step 4: Simplify right side
   558,938x = 1,469,923,459,216
5. Step 5: Solve for x
   x = 1,469,923,459,216/558,938
6. Step 6: Final answer
   x = 2,629,850.64