Finding the Third Proportional to 21,435.50 and 33,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,435.50 : 33,380.50 = 33,380.50 : x
2. Step 2: Convert to fraction form
   21,435.50/33,380.50 = 33,380.50/x
3. Step 3: Cross multiply
   21,435.50x = 33,380.50 × 33,380.50
4. Step 4: Simplify right side
   21,435.50x = 1,114,257,780.25
5. Step 5: Solve for x
   x = 1,114,257,780.25/21,435.50
6. Step 6: Final answer
   x = 51,981.89