Finding the Third Proportional to 172,944 and 220,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,944 : 220,981.50 = 220,981.50 : x
2. Step 2: Convert to fraction form
   172,944/220,981.50 = 220,981.50/x
3. Step 3: Cross multiply
   172,944x = 220,981.50 × 220,981.50
4. Step 4: Simplify right side
   172,944x = 48,832,823,342.25
5. Step 5: Solve for x
   x = 48,832,823,342.25/172,944
6. Step 6: Final answer
   x = 282,362.06