Finding the Third Proportional to 13,443.50 and 21,353.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.50 : 21,353.75 = 21,353.75 : x
2. Step 2: Convert to fraction form
   13,443.50/21,353.75 = 21,353.75/x
3. Step 3: Cross multiply
   13,443.50x = 21,353.75 × 21,353.75
4. Step 4: Simplify right side
   13,443.50x = 455,982,639.06
5. Step 5: Solve for x
   x = 455,982,639.06/13,443.50
6. Step 6: Final answer
   x = 33,918.45