Finding the Third Proportional to 21,601.69 and 31,645.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,601.69 : 31,645.69 = 31,645.69 : x
2. Step 2: Convert to fraction form
   21,601.69/31,645.69 = 31,645.69/x
3. Step 3: Cross multiply
   21,601.69x = 31,645.69 × 31,645.69
4. Step 4: Simplify right side
   21,601.69x = 1,001,449,537.35
5. Step 5: Solve for x
   x = 1,001,449,537.35/21,601.69
6. Step 6: Final answer
   x = 46,359.78