Finding the Third Proportional to 9,747.21 and 13,938.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,747.21 : 13,938.96 = 13,938.96 : x
2. Step 2: Convert to fraction form
   9,747.21/13,938.96 = 13,938.96/x
3. Step 3: Cross multiply
   9,747.21x = 13,938.96 × 13,938.96
4. Step 4: Simplify right side
   9,747.21x = 194,294,632.02
5. Step 5: Solve for x
   x = 194,294,632.02/9,747.21
6. Step 6: Final answer
   x = 19,933.36