Finding the Third Proportional to 9,993.50 and 21,715

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.50 : 21,715 = 21,715 : x
2. Step 2: Convert to fraction form
   9,993.50/21,715 = 21,715/x
3. Step 3: Cross multiply
   9,993.50x = 21,715 × 21,715
4. Step 4: Simplify right side
   9,993.50x = 471,541,225
5. Step 5: Solve for x
   x = 471,541,225/9,993.50
6. Step 6: Final answer
   x = 47,184.79