Finding the Third Proportional to 9,938.50 and 13,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.50 : 13,449.50 = 13,449.50 : x
2. Step 2: Convert to fraction form
   9,938.50/13,449.50 = 13,449.50/x
3. Step 3: Cross multiply
   9,938.50x = 13,449.50 × 13,449.50
4. Step 4: Simplify right side
   9,938.50x = 180,889,050.25
5. Step 5: Solve for x
   x = 180,889,050.25/9,938.50
6. Step 6: Final answer
   x = 18,200.84