Finding the Third Proportional to 543,915 and 1,178,227

Step by Step Solution

1. Step 1: Write the proportion equation
   543,915 : 1,178,227 = 1,178,227 : x
2. Step 2: Convert to fraction form
   543,915/1,178,227 = 1,178,227/x
3. Step 3: Cross multiply
   543,915x = 1,178,227 × 1,178,227
4. Step 4: Simplify right side
   543,915x = 1,388,218,863,529
5. Step 5: Solve for x
   x = 1,388,218,863,529/543,915
6. Step 6: Final answer
   x = 2,552,271.70