Finding the Third Proportional to 60,503 and 131,503

Step by Step Solution

1. Step 1: Write the proportion equation
   60,503 : 131,503 = 131,503 : x
2. Step 2: Convert to fraction form
   60,503/131,503 = 131,503/x
3. Step 3: Cross multiply
   60,503x = 131,503 × 131,503
4. Step 4: Simplify right side
   60,503x = 17,293,039,009
5. Step 5: Solve for x
   x = 17,293,039,009/60,503
6. Step 6: Final answer
   x = 285,821.18