Finding the Third Proportional to 9,449 and 20,688.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,449 : 20,688.25 = 20,688.25 : x
2. Step 2: Convert to fraction form
   9,449/20,688.25 = 20,688.25/x
3. Step 3: Cross multiply
   9,449x = 20,688.25 × 20,688.25
4. Step 4: Simplify right side
   9,449x = 428,003,688.06
5. Step 5: Solve for x
   x = 428,003,688.06/9,449
6. Step 6: Final answer
   x = 45,296.19