Finding the Third Proportional to 79,308.50 and 171,685

Step by Step Solution

1. Step 1: Write the proportion equation
   79,308.50 : 171,685 = 171,685 : x
2. Step 2: Convert to fraction form
   79,308.50/171,685 = 171,685/x
3. Step 3: Cross multiply
   79,308.50x = 171,685 × 171,685
4. Step 4: Simplify right side
   79,308.50x = 29,475,739,225
5. Step 5: Solve for x
   x = 29,475,739,225/79,308.50
6. Step 6: Final answer
   x = 371,659.27