Finding the Third Proportional to 21,408 and 34,093.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,408 : 34,093.50 = 34,093.50 : x
2. Step 2: Convert to fraction form
   21,408/34,093.50 = 34,093.50/x
3. Step 3: Cross multiply
   21,408x = 34,093.50 × 34,093.50
4. Step 4: Simplify right side
   21,408x = 1,162,366,742.25
5. Step 5: Solve for x
   x = 1,162,366,742.25/21,408
6. Step 6: Final answer
   x = 54,295.91