Finding the Third Proportional to 13,443.75 and 21,957.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.75 : 21,957.75 = 21,957.75 : x
2. Step 2: Convert to fraction form
   13,443.75/21,957.75 = 21,957.75/x
3. Step 3: Cross multiply
   13,443.75x = 21,957.75 × 21,957.75
4. Step 4: Simplify right side
   13,443.75x = 482,142,785.06
5. Step 5: Solve for x
   x = 482,142,785.06/13,443.75
6. Step 6: Final answer
   x = 35,863.71