Finding the Third Proportional to 13,319.72 and 19,888.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,319.72 : 19,888.45 = 19,888.45 : x
2. Step 2: Convert to fraction form
   13,319.72/19,888.45 = 19,888.45/x
3. Step 3: Cross multiply
   13,319.72x = 19,888.45 × 19,888.45
4. Step 4: Simplify right side
   13,319.72x = 395,550,567.71
5. Step 5: Solve for x
   x = 395,550,567.71/13,319.72
6. Step 6: Final answer
   x = 29,696.62