Finding the Third Proportional to 21,861 and 33,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,861 : 33,610.50 = 33,610.50 : x
2. Step 2: Convert to fraction form
   21,861/33,610.50 = 33,610.50/x
3. Step 3: Cross multiply
   21,861x = 33,610.50 × 33,610.50
4. Step 4: Simplify right side
   21,861x = 1,129,665,710.25
5. Step 5: Solve for x
   x = 1,129,665,710.25/21,861
6. Step 6: Final answer
   x = 51,674.93