Finding the Third Proportional to 21,918 and 31,340.44

Step by Step Solution

1. Step 1: Write the proportion equation
   21,918 : 31,340.44 = 31,340.44 : x
2. Step 2: Convert to fraction form
   21,918/31,340.44 = 31,340.44/x
3. Step 3: Cross multiply
   21,918x = 31,340.44 × 31,340.44
4. Step 4: Simplify right side
   21,918x = 982,223,022.69
5. Step 5: Solve for x
   x = 982,223,022.69/21,918
6. Step 6: Final answer
   x = 44,813.53