Finding the Third Proportional to 158,718 and 245,647

Step by Step Solution

1. Step 1: Write the proportion equation
   158,718 : 245,647 = 245,647 : x
2. Step 2: Convert to fraction form
   158,718/245,647 = 245,647/x
3. Step 3: Cross multiply
   158,718x = 245,647 × 245,647
4. Step 4: Simplify right side
   158,718x = 60,342,448,609
5. Step 5: Solve for x
   x = 60,342,448,609/158,718
6. Step 6: Final answer
   x = 380,186.55