Finding the Third Proportional to 9,109.69 and 13,336.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.69 : 13,336.88 = 13,336.88 : x
2. Step 2: Convert to fraction form
   9,109.69/13,336.88 = 13,336.88/x
3. Step 3: Cross multiply
   9,109.69x = 13,336.88 × 13,336.88
4. Step 4: Simplify right side
   9,109.69x = 177,872,234.77
5. Step 5: Solve for x
   x = 177,872,234.77/9,109.69
6. Step 6: Final answer
   x = 19,525.61