Finding the Third Proportional to 72,456.75 and 154,543.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,456.75 : 154,543.25 = 154,543.25 : x
2. Step 2: Convert to fraction form
   72,456.75/154,543.25 = 154,543.25/x
3. Step 3: Cross multiply
   72,456.75x = 154,543.25 × 154,543.25
4. Step 4: Simplify right side
   72,456.75x = 23,883,616,120.56
5. Step 5: Solve for x
   x = 23,883,616,120.56/72,456.75
6. Step 6: Final answer
   x = 329,625.83