Finding the Third Proportional to 10,081.50 and 21,317

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.50 : 21,317 = 21,317 : x
2. Step 2: Convert to fraction form
   10,081.50/21,317 = 21,317/x
3. Step 3: Cross multiply
   10,081.50x = 21,317 × 21,317
4. Step 4: Simplify right side
   10,081.50x = 454,414,489
5. Step 5: Solve for x
   x = 454,414,489/10,081.50
6. Step 6: Final answer
   x = 45,074.10