Finding the Third Proportional to 13,817.25 and 21,435.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,817.25 : 21,435.75 = 21,435.75 : x
2. Step 2: Convert to fraction form
   13,817.25/21,435.75 = 21,435.75/x
3. Step 3: Cross multiply
   13,817.25x = 21,435.75 × 21,435.75
4. Step 4: Simplify right side
   13,817.25x = 459,491,378.06
5. Step 5: Solve for x
   x = 459,491,378.06/13,817.25
6. Step 6: Final answer
   x = 33,254.91