Finding the Third Proportional to 19,800 and 40,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,800 : 40,855.50 = 40,855.50 : x
2. Step 2: Convert to fraction form
   19,800/40,855.50 = 40,855.50/x
3. Step 3: Cross multiply
   19,800x = 40,855.50 × 40,855.50
4. Step 4: Simplify right side
   19,800x = 1,669,171,880.25
5. Step 5: Solve for x
   x = 1,669,171,880.25/19,800
6. Step 6: Final answer
   x = 84,301.61