Finding the Third Proportional to 21,538.69 and 31,472.44

Step by Step Solution

1. Step 1: Write the proportion equation
   21,538.69 : 31,472.44 = 31,472.44 : x
2. Step 2: Convert to fraction form
   21,538.69/31,472.44 = 31,472.44/x
3. Step 3: Cross multiply
   21,538.69x = 31,472.44 × 31,472.44
4. Step 4: Simplify right side
   21,538.69x = 990,514,322.19
5. Step 5: Solve for x
   x = 990,514,322.19/21,538.69
6. Step 6: Final answer
   x = 45,987.68