Finding the Third Proportional to 158,436 and 230,520

Step by Step Solution

1. Step 1: Write the proportion equation
   158,436 : 230,520 = 230,520 : x
2. Step 2: Convert to fraction form
   158,436/230,520 = 230,520/x
3. Step 3: Cross multiply
   158,436x = 230,520 × 230,520
4. Step 4: Simplify right side
   158,436x = 53,139,470,400
5. Step 5: Solve for x
   x = 53,139,470,400/158,436
6. Step 6: Final answer
   x = 335,400.23