Finding the Third Proportional to 8,707.42 and 13,080.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,707.42 : 13,080.35 = 13,080.35 : x
2. Step 2: Convert to fraction form
   8,707.42/13,080.35 = 13,080.35/x
3. Step 3: Cross multiply
   8,707.42x = 13,080.35 × 13,080.35
4. Step 4: Simplify right side
   8,707.42x = 171,095,635.32
5. Step 5: Solve for x
   x = 171,095,635.32/8,707.42
6. Step 6: Final answer
   x = 19,649.40