Finding the Third Proportional to 155,540 and 230,030

Step by Step Solution

1. Step 1: Write the proportion equation
   155,540 : 230,030 = 230,030 : x
2. Step 2: Convert to fraction form
   155,540/230,030 = 230,030/x
3. Step 3: Cross multiply
   155,540x = 230,030 × 230,030
4. Step 4: Simplify right side
   155,540x = 52,913,800,900
5. Step 5: Solve for x
   x = 52,913,800,900/155,540
6. Step 6: Final answer
   x = 340,194.17