Finding the Third Proportional to 4,568 and 9,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,568 : 9,981.50 = 9,981.50 : x
2. Step 2: Convert to fraction form
   4,568/9,981.50 = 9,981.50/x
3. Step 3: Cross multiply
   4,568x = 9,981.50 × 9,981.50
4. Step 4: Simplify right side
   4,568x = 99,630,342.25
5. Step 5: Solve for x
   x = 99,630,342.25/4,568
6. Step 6: Final answer
   x = 21,810.50