Finding the Third Proportional to 78,117.75 and 170,049.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,117.75 : 170,049.38 = 170,049.38 : x
2. Step 2: Convert to fraction form
   78,117.75/170,049.38 = 170,049.38/x
3. Step 3: Cross multiply
   78,117.75x = 170,049.38 × 170,049.38
4. Step 4: Simplify right side
   78,117.75x = 28,916,789,937.89
5. Step 5: Solve for x
   x = 28,916,789,937.89/78,117.75
6. Step 6: Final answer
   x = 370,169.26