Finding the Third Proportional to 9,740 and 10,988

Step by Step Solution

1. Step 1: Write the proportion equation
   9,740 : 10,988 = 10,988 : x
2. Step 2: Convert to fraction form
   9,740/10,988 = 10,988/x
3. Step 3: Cross multiply
   9,740x = 10,988 × 10,988
4. Step 4: Simplify right side
   9,740x = 120,736,144
5. Step 5: Solve for x
   x = 120,736,144/9,740
6. Step 6: Final answer
   x = 12,395.91