Finding the Third Proportional to 11,133 and 12,969

Step by Step Solution

1. Step 1: Write the proportion equation
   11,133 : 12,969 = 12,969 : x
2. Step 2: Convert to fraction form
   11,133/12,969 = 12,969/x
3. Step 3: Cross multiply
   11,133x = 12,969 × 12,969
4. Step 4: Simplify right side
   11,133x = 168,194,961
5. Step 5: Solve for x
   x = 168,194,961/11,133
6. Step 6: Final answer
   x = 15,107.78