Finding the Third Proportional to 9,530 and 21,100

Step by Step Solution

1. Step 1: Write the proportion equation
   9,530 : 21,100 = 21,100 : x
2. Step 2: Convert to fraction form
   9,530/21,100 = 21,100/x
3. Step 3: Cross multiply
   9,530x = 21,100 × 21,100
4. Step 4: Simplify right side
   9,530x = 445,210,000
5. Step 5: Solve for x
   x = 445,210,000/9,530
6. Step 6: Final answer
   x = 46,716.68