Finding the Third Proportional to 74,049.50 and 111,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,049.50 : 111,728.50 = 111,728.50 : x
2. Step 2: Convert to fraction form
   74,049.50/111,728.50 = 111,728.50/x
3. Step 3: Cross multiply
   74,049.50x = 111,728.50 × 111,728.50
4. Step 4: Simplify right side
   74,049.50x = 12,483,257,712.25
5. Step 5: Solve for x
   x = 12,483,257,712.25/74,049.50
6. Step 6: Final answer
   x = 168,579.91