Finding the Third Proportional to 21,411 and 34,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,411 : 34,249.50 = 34,249.50 : x
2. Step 2: Convert to fraction form
   21,411/34,249.50 = 34,249.50/x
3. Step 3: Cross multiply
   21,411x = 34,249.50 × 34,249.50
4. Step 4: Simplify right side
   21,411x = 1,173,028,250.25
5. Step 5: Solve for x
   x = 1,173,028,250.25/21,411
6. Step 6: Final answer
   x = 54,786.24