Finding the Third Proportional to 9,925 and 13,231

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925 : 13,231 = 13,231 : x
2. Step 2: Convert to fraction form
   9,925/13,231 = 13,231/x
3. Step 3: Cross multiply
   9,925x = 13,231 × 13,231
4. Step 4: Simplify right side
   9,925x = 175,059,361
5. Step 5: Solve for x
   x = 175,059,361/9,925
6. Step 6: Final answer
   x = 17,638.22