Finding the Third Proportional to 367,404 and 520,020

Step by Step Solution

1. Step 1: Write the proportion equation
   367,404 : 520,020 = 520,020 : x
2. Step 2: Convert to fraction form
   367,404/520,020 = 520,020/x
3. Step 3: Cross multiply
   367,404x = 520,020 × 520,020
4. Step 4: Simplify right side
   367,404x = 270,420,800,400
5. Step 5: Solve for x
   x = 270,420,800,400/367,404
6. Step 6: Final answer
   x = 736,031.18