Finding the Third Proportional to 20,918.25 and 33,665.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,918.25 : 33,665.63 = 33,665.63 : x
2. Step 2: Convert to fraction form
   20,918.25/33,665.63 = 33,665.63/x
3. Step 3: Cross multiply
   20,918.25x = 33,665.63 × 33,665.63
4. Step 4: Simplify right side
   20,918.25x = 1,133,374,306.64
5. Step 5: Solve for x
   x = 1,133,374,306.64/20,918.25
6. Step 6: Final answer
   x = 54,181.12