Finding the Third Proportional to 90,436 and 133,039

Step by Step Solution

1. Step 1: Write the proportion equation
   90,436 : 133,039 = 133,039 : x
2. Step 2: Convert to fraction form
   90,436/133,039 = 133,039/x
3. Step 3: Cross multiply
   90,436x = 133,039 × 133,039
4. Step 4: Simplify right side
   90,436x = 17,699,375,521
5. Step 5: Solve for x
   x = 17,699,375,521/90,436
6. Step 6: Final answer
   x = 195,711.61