Finding the Third Proportional to 13,678.50 and 17,961

Step by Step Solution

1. Step 1: Write the proportion equation
   13,678.50 : 17,961 = 17,961 : x
2. Step 2: Convert to fraction form
   13,678.50/17,961 = 17,961/x
3. Step 3: Cross multiply
   13,678.50x = 17,961 × 17,961
4. Step 4: Simplify right side
   13,678.50x = 322,597,521
5. Step 5: Solve for x
   x = 322,597,521/13,678.50
6. Step 6: Final answer
   x = 23,584.28