Finding the Third Proportional to 395,508.50 and 819,055

Step by Step Solution

1. Step 1: Write the proportion equation
   395,508.50 : 819,055 = 819,055 : x
2. Step 2: Convert to fraction form
   395,508.50/819,055 = 819,055/x
3. Step 3: Cross multiply
   395,508.50x = 819,055 × 819,055
4. Step 4: Simplify right side
   395,508.50x = 670,851,093,025
5. Step 5: Solve for x
   x = 670,851,093,025/395,508.50
6. Step 6: Final answer
   x = 1,696,173.64