Finding the Third Proportional to 18,562.50 and 20,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,562.50 : 20,020.50 = 20,020.50 : x
2. Step 2: Convert to fraction form
   18,562.50/20,020.50 = 20,020.50/x
3. Step 3: Cross multiply
   18,562.50x = 20,020.50 × 20,020.50
4. Step 4: Simplify right side
   18,562.50x = 400,820,420.25
5. Step 5: Solve for x
   x = 400,820,420.25/18,562.50
6. Step 6: Final answer
   x = 21,593.02