Finding the Third Proportional to 13,021.50 and 28,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,021.50 : 28,020.50 = 28,020.50 : x
2. Step 2: Convert to fraction form
   13,021.50/28,020.50 = 28,020.50/x
3. Step 3: Cross multiply
   13,021.50x = 28,020.50 × 28,020.50
4. Step 4: Simplify right side
   13,021.50x = 785,148,420.25
5. Step 5: Solve for x
   x = 785,148,420.25/13,021.50
6. Step 6: Final answer
   x = 60,296.31