Finding the Third Proportional to 21,520 and 33,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520 : 33,238.50 = 33,238.50 : x
2. Step 2: Convert to fraction form
   21,520/33,238.50 = 33,238.50/x
3. Step 3: Cross multiply
   21,520x = 33,238.50 × 33,238.50
4. Step 4: Simplify right side
   21,520x = 1,104,797,882.25
5. Step 5: Solve for x
   x = 1,104,797,882.25/21,520
6. Step 6: Final answer
   x = 51,338.19