Finding the Third Proportional to 78,158.53 and 159,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,158.53 : 159,079.50 = 159,079.50 : x
2. Step 2: Convert to fraction form
   78,158.53/159,079.50 = 159,079.50/x
3. Step 3: Cross multiply
   78,158.53x = 159,079.50 × 159,079.50
4. Step 4: Simplify right side
   78,158.53x = 25,306,287,320.25
5. Step 5: Solve for x
   x = 25,306,287,320.25/78,158.53
6. Step 6: Final answer
   x = 323,781.51