Finding the Third Proportional to 90,442 and 196,452

Step by Step Solution

1. Step 1: Write the proportion equation
   90,442 : 196,452 = 196,452 : x
2. Step 2: Convert to fraction form
   90,442/196,452 = 196,452/x
3. Step 3: Cross multiply
   90,442x = 196,452 × 196,452
4. Step 4: Simplify right side
   90,442x = 38,593,388,304
5. Step 5: Solve for x
   x = 38,593,388,304/90,442
6. Step 6: Final answer
   x = 426,719.76