Finding the Third Proportional to 81,020.25 and 122,649.82

Step by Step Solution

1. Step 1: Write the proportion equation
   81,020.25 : 122,649.82 = 122,649.82 : x
2. Step 2: Convert to fraction form
   81,020.25/122,649.82 = 122,649.82/x
3. Step 3: Cross multiply
   81,020.25x = 122,649.82 × 122,649.82
4. Step 4: Simplify right side
   81,020.25x = 15,042,978,422.69
5. Step 5: Solve for x
   x = 15,042,978,422.69/81,020.25
6. Step 6: Final answer
   x = 185,669.37