Finding the Third Proportional to 81,270.56 and 107,866.69

Step by Step Solution

1. Step 1: Write the proportion equation
   81,270.56 : 107,866.69 = 107,866.69 : x
2. Step 2: Convert to fraction form
   81,270.56/107,866.69 = 107,866.69/x
3. Step 3: Cross multiply
   81,270.56x = 107,866.69 × 107,866.69
4. Step 4: Simplify right side
   81,270.56x = 11,635,222,272.22
5. Step 5: Solve for x
   x = 11,635,222,272.22/81,270.56
6. Step 6: Final answer
   x = 143,166.50