Finding the Third Proportional to 79,662.50 and 172,395

Step by Step Solution

1. Step 1: Write the proportion equation
   79,662.50 : 172,395 = 172,395 : x
2. Step 2: Convert to fraction form
   79,662.50/172,395 = 172,395/x
3. Step 3: Cross multiply
   79,662.50x = 172,395 × 172,395
4. Step 4: Simplify right side
   79,662.50x = 29,720,036,025
5. Step 5: Solve for x
   x = 29,720,036,025/79,662.50
6. Step 6: Final answer
   x = 373,074.36