Finding the Third Proportional to 8,372 and 12,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,372 : 12,243.50 = 12,243.50 : x
2. Step 2: Convert to fraction form
   8,372/12,243.50 = 12,243.50/x
3. Step 3: Cross multiply
   8,372x = 12,243.50 × 12,243.50
4. Step 4: Simplify right side
   8,372x = 149,903,292.25
5. Step 5: Solve for x
   x = 149,903,292.25/8,372
6. Step 6: Final answer
   x = 17,905.31