Finding the Third Proportional to 548,757.50 and 819,005

Step by Step Solution

1. Step 1: Write the proportion equation
   548,757.50 : 819,005 = 819,005 : x
2. Step 2: Convert to fraction form
   548,757.50/819,005 = 819,005/x
3. Step 3: Cross multiply
   548,757.50x = 819,005 × 819,005
4. Step 4: Simplify right side
   548,757.50x = 670,769,190,025
5. Step 5: Solve for x
   x = 670,769,190,025/548,757.50
6. Step 6: Final answer
   x = 1,222,341.73