Finding the Third Proportional to 10,489.50 and 21,252.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,489.50 : 21,252.38 = 21,252.38 : x
2. Step 2: Convert to fraction form
   10,489.50/21,252.38 = 21,252.38/x
3. Step 3: Cross multiply
   10,489.50x = 21,252.38 × 21,252.38
4. Step 4: Simplify right side
   10,489.50x = 451,663,443.14
5. Step 5: Solve for x
   x = 451,663,443.14/10,489.50
6. Step 6: Final answer
   x = 43,058.62