Finding the Third Proportional to 21,279.38 and 29,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,279.38 : 29,821.50 = 29,821.50 : x
2. Step 2: Convert to fraction form
   21,279.38/29,821.50 = 29,821.50/x
3. Step 3: Cross multiply
   21,279.38x = 29,821.50 × 29,821.50
4. Step 4: Simplify right side
   21,279.38x = 889,321,862.25
5. Step 5: Solve for x
   x = 889,321,862.25/21,279.38
6. Step 6: Final answer
   x = 41,792.67