Finding the Third Proportional to 548,441 and 1,222,915

Step by Step Solution

1. Step 1: Write the proportion equation
   548,441 : 1,222,915 = 1,222,915 : x
2. Step 2: Convert to fraction form
   548,441/1,222,915 = 1,222,915/x
3. Step 3: Cross multiply
   548,441x = 1,222,915 × 1,222,915
4. Step 4: Simplify right side
   548,441x = 1,495,521,097,225
5. Step 5: Solve for x
   x = 1,495,521,097,225/548,441
6. Step 6: Final answer
   x = 2,726,858.67