Finding the Third Proportional to 21,609.50 and 33,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,609.50 : 33,336.50 = 33,336.50 : x
2. Step 2: Convert to fraction form
   21,609.50/33,336.50 = 33,336.50/x
3. Step 3: Cross multiply
   21,609.50x = 33,336.50 × 33,336.50
4. Step 4: Simplify right side
   21,609.50x = 1,111,322,232.25
5. Step 5: Solve for x
   x = 1,111,322,232.25/21,609.50
6. Step 6: Final answer
   x = 51,427.48