Finding the Third Proportional to 21,619.13 and 29,325.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,619.13 : 29,325.38 = 29,325.38 : x
2. Step 2: Convert to fraction form
   21,619.13/29,325.38 = 29,325.38/x
3. Step 3: Cross multiply
   21,619.13x = 29,325.38 × 29,325.38
4. Step 4: Simplify right side
   21,619.13x = 859,977,618.89
5. Step 5: Solve for x
   x = 859,977,618.89/21,619.13
6. Step 6: Final answer
   x = 39,778.56