Finding the Third Proportional to 21,520.69 and 33,404.91

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520.69 : 33,404.91 = 33,404.91 : x
2. Step 2: Convert to fraction form
   21,520.69/33,404.91 = 33,404.91/x
3. Step 3: Cross multiply
   21,520.69x = 33,404.91 × 33,404.91
4. Step 4: Simplify right side
   21,520.69x = 1,115,887,761.57
5. Step 5: Solve for x
   x = 1,115,887,761.57/21,520.69
6. Step 6: Final answer
   x = 51,851.86