Finding the Third Proportional to 21,578.50 and 33,907

Step by Step Solution

1. Step 1: Write the proportion equation
   21,578.50 : 33,907 = 33,907 : x
2. Step 2: Convert to fraction form
   21,578.50/33,907 = 33,907/x
3. Step 3: Cross multiply
   21,578.50x = 33,907 × 33,907
4. Step 4: Simplify right side
   21,578.50x = 1,149,684,649
5. Step 5: Solve for x
   x = 1,149,684,649/21,578.50
6. Step 6: Final answer
   x = 53,279.17