Finding the Third Proportional to 13,608 and 19,979.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,608 : 19,979.16 = 19,979.16 : x
2. Step 2: Convert to fraction form
   13,608/19,979.16 = 19,979.16/x
3. Step 3: Cross multiply
   13,608x = 19,979.16 × 19,979.16
4. Step 4: Simplify right side
   13,608x = 399,166,684.46
5. Step 5: Solve for x
   x = 399,166,684.46/13,608
6. Step 6: Final answer
   x = 29,333.24