Finding the Third Proportional to 21,317.25 and 29,818.13

Step by Step Solution

1. Step 1: Write the proportion equation
   21,317.25 : 29,818.13 = 29,818.13 : x
2. Step 2: Convert to fraction form
   21,317.25/29,818.13 = 29,818.13/x
3. Step 3: Cross multiply
   21,317.25x = 29,818.13 × 29,818.13
4. Step 4: Simplify right side
   21,317.25x = 889,120,578.52
5. Step 5: Solve for x
   x = 889,120,578.52/21,317.25
6. Step 6: Final answer
   x = 41,708.97