Finding the Third Proportional to 79,680.38 and 173,849.63

Step by Step Solution

1. Step 1: Write the proportion equation
   79,680.38 : 173,849.63 = 173,849.63 : x
2. Step 2: Convert to fraction form
   79,680.38/173,849.63 = 173,849.63/x
3. Step 3: Cross multiply
   79,680.38x = 173,849.63 × 173,849.63
4. Step 4: Simplify right side
   79,680.38x = 30,223,692,112.64
5. Step 5: Solve for x
   x = 30,223,692,112.64/79,680.38
6. Step 6: Final answer
   x = 379,311.62