Finding the Third Proportional to 21,269.25 and 31,289.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,269.25 : 31,289.63 = 31,289.63 : x
2. Step 2: Convert to fraction form
   21,269.25/31,289.63 = 31,289.63/x
3. Step 3: Cross multiply
   21,269.25x = 31,289.63 × 31,289.63
4. Step 4: Simplify right side
   21,269.25x = 979,040,632.64
5. Step 5: Solve for x
   x = 979,040,632.64/21,269.25
6. Step 6: Final answer
   x = 46,030.80