Finding the Third Proportional to 9,603 and 10,503

Step by Step Solution

1. Step 1: Write the proportion equation
   9,603 : 10,503 = 10,503 : x
2. Step 2: Convert to fraction form
   9,603/10,503 = 10,503/x
3. Step 3: Cross multiply
   9,603x = 10,503 × 10,503
4. Step 4: Simplify right side
   9,603x = 110,313,009
5. Step 5: Solve for x
   x = 110,313,009/9,603
6. Step 6: Final answer
   x = 11,487.35