Finding the Third Proportional to 13,584.38 and 21,615.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,584.38 : 21,615.19 = 21,615.19 : x
2. Step 2: Convert to fraction form
   13,584.38/21,615.19 = 21,615.19/x
3. Step 3: Cross multiply
   13,584.38x = 21,615.19 × 21,615.19
4. Step 4: Simplify right side
   13,584.38x = 467,216,330.66
5. Step 5: Solve for x
   x = 467,216,330.66/13,584.38
6. Step 6: Final answer
   x = 34,393.66