Finding the Third Proportional to 54,198 and 71,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,198 : 71,911.50 = 71,911.50 : x
2. Step 2: Convert to fraction form
   54,198/71,911.50 = 71,911.50/x
3. Step 3: Cross multiply
   54,198x = 71,911.50 × 71,911.50
4. Step 4: Simplify right side
   54,198x = 5,171,263,832.25
5. Step 5: Solve for x
   x = 5,171,263,832.25/54,198
6. Step 6: Final answer
   x = 95,414.29