Finding the Third Proportional to 21,310.59 and 33,431.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,310.59 : 33,431.48 = 33,431.48 : x
2. Step 2: Convert to fraction form
   21,310.59/33,431.48 = 33,431.48/x
3. Step 3: Cross multiply
   21,310.59x = 33,431.48 × 33,431.48
4. Step 4: Simplify right side
   21,310.59x = 1,117,664,147.52
5. Step 5: Solve for x
   x = 1,117,664,147.52/21,310.59
6. Step 6: Final answer
   x = 52,446.41