Finding the Third Proportional to 13,996.50 and 30,561

Step by Step Solution

1. Step 1: Write the proportion equation
   13,996.50 : 30,561 = 30,561 : x
2. Step 2: Convert to fraction form
   13,996.50/30,561 = 30,561/x
3. Step 3: Cross multiply
   13,996.50x = 30,561 × 30,561
4. Step 4: Simplify right side
   13,996.50x = 933,974,721
5. Step 5: Solve for x
   x = 933,974,721/13,996.50
6. Step 6: Final answer
   x = 66,729.16