Finding the Third Proportional to 15,022.50 and 21,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,022.50 : 21,757.50 = 21,757.50 : x
2. Step 2: Convert to fraction form
   15,022.50/21,757.50 = 21,757.50/x
3. Step 3: Cross multiply
   15,022.50x = 21,757.50 × 21,757.50
4. Step 4: Simplify right side
   15,022.50x = 473,388,806.25
5. Step 5: Solve for x
   x = 473,388,806.25/15,022.50
6. Step 6: Final answer
   x = 31,511.99