Finding the Third Proportional to 9,084.50 and 13,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,084.50 : 13,890.50 = 13,890.50 : x
2. Step 2: Convert to fraction form
   9,084.50/13,890.50 = 13,890.50/x
3. Step 3: Cross multiply
   9,084.50x = 13,890.50 × 13,890.50
4. Step 4: Simplify right side
   9,084.50x = 192,945,990.25
5. Step 5: Solve for x
   x = 192,945,990.25/9,084.50
6. Step 6: Final answer
   x = 21,239.03