Finding the Third Proportional to 158,685 and 245,865

Step by Step Solution

1. Step 1: Write the proportion equation
   158,685 : 245,865 = 245,865 : x
2. Step 2: Convert to fraction form
   158,685/245,865 = 245,865/x
3. Step 3: Cross multiply
   158,685x = 245,865 × 245,865
4. Step 4: Simplify right side
   158,685x = 60,449,598,225
5. Step 5: Solve for x
   x = 60,449,598,225/158,685
6. Step 6: Final answer
   x = 380,940.85