Finding the Third Proportional to 21,245 and 33,752.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,245 : 33,752.50 = 33,752.50 : x
2. Step 2: Convert to fraction form
   21,245/33,752.50 = 33,752.50/x
3. Step 3: Cross multiply
   21,245x = 33,752.50 × 33,752.50
4. Step 4: Simplify right side
   21,245x = 1,139,231,256.25
5. Step 5: Solve for x
   x = 1,139,231,256.25/21,245
6. Step 6: Final answer
   x = 53,623.50