Finding the Third Proportional to 81,422.72 and 179,409.94

Step by Step Solution

1. Step 1: Write the proportion equation
   81,422.72 : 179,409.94 = 179,409.94 : x
2. Step 2: Convert to fraction form
   81,422.72/179,409.94 = 179,409.94/x
3. Step 3: Cross multiply
   81,422.72x = 179,409.94 × 179,409.94
4. Step 4: Simplify right side
   81,422.72x = 32,187,925,673.75
5. Step 5: Solve for x
   x = 32,187,925,673.75/81,422.72
6. Step 6: Final answer
   x = 395,318.73