Finding the Third Proportional to 21,434.50 and 33,379

Step by Step Solution

1. Step 1: Write the proportion equation
   21,434.50 : 33,379 = 33,379 : x
2. Step 2: Convert to fraction form
   21,434.50/33,379 = 33,379/x
3. Step 3: Cross multiply
   21,434.50x = 33,379 × 33,379
4. Step 4: Simplify right side
   21,434.50x = 1,114,157,641
5. Step 5: Solve for x
   x = 1,114,157,641/21,434.50
6. Step 6: Final answer
   x = 51,979.64