Finding the Third Proportional to 10,995 and 12,201

Step by Step Solution

1. Step 1: Write the proportion equation
   10,995 : 12,201 = 12,201 : x
2. Step 2: Convert to fraction form
   10,995/12,201 = 12,201/x
3. Step 3: Cross multiply
   10,995x = 12,201 × 12,201
4. Step 4: Simplify right side
   10,995x = 148,864,401
5. Step 5: Solve for x
   x = 148,864,401/10,995
6. Step 6: Final answer
   x = 13,539.28