Finding the Third Proportional to 21,299.25 and 29,787.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,299.25 : 29,787.75 = 29,787.75 : x
2. Step 2: Convert to fraction form
   21,299.25/29,787.75 = 29,787.75/x
3. Step 3: Cross multiply
   21,299.25x = 29,787.75 × 29,787.75
4. Step 4: Simplify right side
   21,299.25x = 887,310,050.06
5. Step 5: Solve for x
   x = 887,310,050.06/21,299.25
6. Step 6: Final answer
   x = 41,659.22