Finding the Third Proportional to 13,020.50 and 20,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.50 : 20,192.50 = 20,192.50 : x
2. Step 2: Convert to fraction form
   13,020.50/20,192.50 = 20,192.50/x
3. Step 3: Cross multiply
   13,020.50x = 20,192.50 × 20,192.50
4. Step 4: Simplify right side
   13,020.50x = 407,737,056.25
5. Step 5: Solve for x
   x = 407,737,056.25/13,020.50
6. Step 6: Final answer
   x = 31,315.01