Finding the Third Proportional to 78,268.50 and 171,306

Step by Step Solution

1. Step 1: Write the proportion equation
   78,268.50 : 171,306 = 171,306 : x
2. Step 2: Convert to fraction form
   78,268.50/171,306 = 171,306/x
3. Step 3: Cross multiply
   78,268.50x = 171,306 × 171,306
4. Step 4: Simplify right side
   78,268.50x = 29,345,745,636
5. Step 5: Solve for x
   x = 29,345,745,636/78,268.50
6. Step 6: Final answer
   x = 374,936.86