Finding the Third Proportional to 15,681.50 and 33,521

Step by Step Solution

1. Step 1: Write the proportion equation
   15,681.50 : 33,521 = 33,521 : x
2. Step 2: Convert to fraction form
   15,681.50/33,521 = 33,521/x
3. Step 3: Cross multiply
   15,681.50x = 33,521 × 33,521
4. Step 4: Simplify right side
   15,681.50x = 1,123,657,441
5. Step 5: Solve for x
   x = 1,123,657,441/15,681.50
6. Step 6: Final answer
   x = 71,654.97