Finding the Third Proportional to 10,436 and 11,900

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436 : 11,900 = 11,900 : x
2. Step 2: Convert to fraction form
   10,436/11,900 = 11,900/x
3. Step 3: Cross multiply
   10,436x = 11,900 × 11,900
4. Step 4: Simplify right side
   10,436x = 141,610,000
5. Step 5: Solve for x
   x = 141,610,000/10,436
6. Step 6: Final answer
   x = 13,569.38