Finding the Third Proportional to 78,949.50 and 175,395

Step by Step Solution

1. Step 1: Write the proportion equation
   78,949.50 : 175,395 = 175,395 : x
2. Step 2: Convert to fraction form
   78,949.50/175,395 = 175,395/x
3. Step 3: Cross multiply
   78,949.50x = 175,395 × 175,395
4. Step 4: Simplify right side
   78,949.50x = 30,763,406,025
5. Step 5: Solve for x
   x = 30,763,406,025/78,949.50
6. Step 6: Final answer
   x = 389,659.29