Finding the Third Proportional to 158,716 and 245,644

Step by Step Solution

1. Step 1: Write the proportion equation
   158,716 : 245,644 = 245,644 : x
2. Step 2: Convert to fraction form
   158,716/245,644 = 245,644/x
3. Step 3: Cross multiply
   158,716x = 245,644 × 245,644
4. Step 4: Simplify right side
   158,716x = 60,340,974,736
5. Step 5: Solve for x
   x = 60,340,974,736/158,716
6. Step 6: Final answer
   x = 380,182.05