Finding the Third Proportional to 79,986.66 and 175,039.31

Step by Step Solution

1. Step 1: Write the proportion equation
   79,986.66 : 175,039.31 = 175,039.31 : x
2. Step 2: Convert to fraction form
   79,986.66/175,039.31 = 175,039.31/x
3. Step 3: Cross multiply
   79,986.66x = 175,039.31 × 175,039.31
4. Step 4: Simplify right side
   79,986.66x = 30,638,760,920.47
5. Step 5: Solve for x
   x = 30,638,760,920.47/79,986.66
6. Step 6: Final answer
   x = 383,048.40