Finding the Third Proportional to 78,403.50 and 170,496

Step by Step Solution

1. Step 1: Write the proportion equation
   78,403.50 : 170,496 = 170,496 : x
2. Step 2: Convert to fraction form
   78,403.50/170,496 = 170,496/x
3. Step 3: Cross multiply
   78,403.50x = 170,496 × 170,496
4. Step 4: Simplify right side
   78,403.50x = 29,068,886,016
5. Step 5: Solve for x
   x = 29,068,886,016/78,403.50
6. Step 6: Final answer
   x = 370,760.06