Finding the Third Proportional to 384,552 and 819,144

Step by Step Solution

1. Step 1: Write the proportion equation
   384,552 : 819,144 = 819,144 : x
2. Step 2: Convert to fraction form
   384,552/819,144 = 819,144/x
3. Step 3: Cross multiply
   384,552x = 819,144 × 819,144
4. Step 4: Simplify right side
   384,552x = 670,996,892,736
5. Step 5: Solve for x
   x = 670,996,892,736/384,552
6. Step 6: Final answer
   x = 1,744,879.48