Finding the Third Proportional to 10,216.13 and 21,890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,216.13 : 21,890.25 = 21,890.25 : x
2. Step 2: Convert to fraction form
   10,216.13/21,890.25 = 21,890.25/x
3. Step 3: Cross multiply
   10,216.13x = 21,890.25 × 21,890.25
4. Step 4: Simplify right side
   10,216.13x = 479,183,045.06
5. Step 5: Solve for x
   x = 479,183,045.06/10,216.13
6. Step 6: Final answer
   x = 46,904.58