Finding the Third Proportional to 21,857 and 33,601.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,857 : 33,601.50 = 33,601.50 : x
2. Step 2: Convert to fraction form
   21,857/33,601.50 = 33,601.50/x
3. Step 3: Cross multiply
   21,857x = 33,601.50 × 33,601.50
4. Step 4: Simplify right side
   21,857x = 1,129,060,802.25
5. Step 5: Solve for x
   x = 1,129,060,802.25/21,857
6. Step 6: Final answer
   x = 51,656.71