Finding the Third Proportional to 40,647 and 54,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,647 : 54,367.50 = 54,367.50 : x
2. Step 2: Convert to fraction form
   40,647/54,367.50 = 54,367.50/x
3. Step 3: Cross multiply
   40,647x = 54,367.50 × 54,367.50
4. Step 4: Simplify right side
   40,647x = 2,955,825,056.25
5. Step 5: Solve for x
   x = 2,955,825,056.25/40,647
6. Step 6: Final answer
   x = 72,719.39