Finding the Third Proportional to 13,918.50 and 21,555.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,918.50 : 21,555.75 = 21,555.75 : x
2. Step 2: Convert to fraction form
   13,918.50/21,555.75 = 21,555.75/x
3. Step 3: Cross multiply
   13,918.50x = 21,555.75 × 21,555.75
4. Step 4: Simplify right side
   13,918.50x = 464,650,358.06
5. Step 5: Solve for x
   x = 464,650,358.06/13,918.50
6. Step 6: Final answer
   x = 33,383.65