Finding the Third Proportional to 78,343.50 and 160,836

Step by Step Solution

1. Step 1: Write the proportion equation
   78,343.50 : 160,836 = 160,836 : x
2. Step 2: Convert to fraction form
   78,343.50/160,836 = 160,836/x
3. Step 3: Cross multiply
   78,343.50x = 160,836 × 160,836
4. Step 4: Simplify right side
   78,343.50x = 25,868,218,896
5. Step 5: Solve for x
   x = 25,868,218,896/78,343.50
6. Step 6: Final answer
   x = 330,189.73