Finding the Third Proportional to 170,965.69 and 395,788.15

Step by Step Solution

1. Step 1: Write the proportion equation
   170,965.69 : 395,788.15 = 395,788.15 : x
2. Step 2: Convert to fraction form
   170,965.69/395,788.15 = 395,788.15/x
3. Step 3: Cross multiply
   170,965.69x = 395,788.15 × 395,788.15
4. Step 4: Simplify right side
   170,965.69x = 156,648,258,443.59
5. Step 5: Solve for x
   x = 156,648,258,443.59/170,965.69
6. Step 6: Final answer
   x = 916,255.54