Finding the Third Proportional to 21,758.25 and 29,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,758.25 : 29,356.50 = 29,356.50 : x
2. Step 2: Convert to fraction form
   21,758.25/29,356.50 = 29,356.50/x
3. Step 3: Cross multiply
   21,758.25x = 29,356.50 × 29,356.50
4. Step 4: Simplify right side
   21,758.25x = 861,804,092.25
5. Step 5: Solve for x
   x = 861,804,092.25/21,758.25
6. Step 6: Final answer
   x = 39,608.15