Finding the Third Proportional to 78,483.50 and 161,103

Step by Step Solution

1. Step 1: Write the proportion equation
   78,483.50 : 161,103 = 161,103 : x
2. Step 2: Convert to fraction form
   78,483.50/161,103 = 161,103/x
3. Step 3: Cross multiply
   78,483.50x = 161,103 × 161,103
4. Step 4: Simplify right side
   78,483.50x = 25,954,176,609
5. Step 5: Solve for x
   x = 25,954,176,609/78,483.50
6. Step 6: Final answer
   x = 330,695.96