Finding the Third Proportional to 18,280 and 39,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,280 : 39,003.50 = 39,003.50 : x
2. Step 2: Convert to fraction form
   18,280/39,003.50 = 39,003.50/x
3. Step 3: Cross multiply
   18,280x = 39,003.50 × 39,003.50
4. Step 4: Simplify right side
   18,280x = 1,521,273,012.25
5. Step 5: Solve for x
   x = 1,521,273,012.25/18,280
6. Step 6: Final answer
   x = 83,220.62