Finding the Third Proportional to 10,231.31 and 21,328.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.31 : 21,328.31 = 21,328.31 : x
2. Step 2: Convert to fraction form
   10,231.31/21,328.31 = 21,328.31/x
3. Step 3: Cross multiply
   10,231.31x = 21,328.31 × 21,328.31
4. Step 4: Simplify right side
   10,231.31x = 454,896,914.10
5. Step 5: Solve for x
   x = 454,896,914.10/10,231.31
6. Step 6: Final answer
   x = 44,461.25