Finding the Third Proportional to 7,057 and 10,991

Step by Step Solution

1. Step 1: Write the proportion equation
   7,057 : 10,991 = 10,991 : x
2. Step 2: Convert to fraction form
   7,057/10,991 = 10,991/x
3. Step 3: Cross multiply
   7,057x = 10,991 × 10,991
4. Step 4: Simplify right side
   7,057x = 120,802,081
5. Step 5: Solve for x
   x = 120,802,081/7,057
6. Step 6: Final answer
   x = 17,118.05