Finding the Third Proportional to 213,734 and 333,540

Step by Step Solution

1. Step 1: Write the proportion equation
   213,734 : 333,540 = 333,540 : x
2. Step 2: Convert to fraction form
   213,734/333,540 = 333,540/x
3. Step 3: Cross multiply
   213,734x = 333,540 × 333,540
4. Step 4: Simplify right side
   213,734x = 111,248,931,600
5. Step 5: Solve for x
   x = 111,248,931,600/213,734
6. Step 6: Final answer
   x = 520,501.80