Finding the Third Proportional to 395,511.75 and 819,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   395,511.75 : 819,061.88 = 819,061.88 : x
2. Step 2: Convert to fraction form
   395,511.75/819,061.88 = 819,061.88/x
3. Step 3: Cross multiply
   395,511.75x = 819,061.88 × 819,061.88
4. Step 4: Simplify right side
   395,511.75x = 670,862,355,078.52
5. Step 5: Solve for x
   x = 670,862,355,078.52/395,511.75
6. Step 6: Final answer
   x = 1,696,188.18