Finding the Third Proportional to 21,145 and 33,472.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,145 : 33,472.50 = 33,472.50 : x
2. Step 2: Convert to fraction form
   21,145/33,472.50 = 33,472.50/x
3. Step 3: Cross multiply
   21,145x = 33,472.50 × 33,472.50
4. Step 4: Simplify right side
   21,145x = 1,120,408,256.25
5. Step 5: Solve for x
   x = 1,120,408,256.25/21,145
6. Step 6: Final answer
   x = 52,986.91