Finding the Third Proportional to 9,421.75 and 13,851.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,421.75 : 13,851.75 = 13,851.75 : x
2. Step 2: Convert to fraction form
   9,421.75/13,851.75 = 13,851.75/x
3. Step 3: Cross multiply
   9,421.75x = 13,851.75 × 13,851.75
4. Step 4: Simplify right side
   9,421.75x = 191,870,978.06
5. Step 5: Solve for x
   x = 191,870,978.06/9,421.75
6. Step 6: Final answer
   x = 20,364.69