Finding the Third Proportional to 162,700 and 298,400

Step by Step Solution

1. Step 1: Write the proportion equation
   162,700 : 298,400 = 298,400 : x
2. Step 2: Convert to fraction form
   162,700/298,400 = 298,400/x
3. Step 3: Cross multiply
   162,700x = 298,400 × 298,400
4. Step 4: Simplify right side
   162,700x = 89,042,560,000
5. Step 5: Solve for x
   x = 89,042,560,000/162,700
6. Step 6: Final answer
   x = 547,280.64