Finding the Third Proportional to 9,406.50 and 20,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.50 : 20,108.50 = 20,108.50 : x
2. Step 2: Convert to fraction form
   9,406.50/20,108.50 = 20,108.50/x
3. Step 3: Cross multiply
   9,406.50x = 20,108.50 × 20,108.50
4. Step 4: Simplify right side
   9,406.50x = 404,351,772.25
5. Step 5: Solve for x
   x = 404,351,772.25/9,406.50
6. Step 6: Final answer
   x = 42,986.42