Finding the Third Proportional to 101,238.50 and 221,546

Step by Step Solution

1. Step 1: Write the proportion equation
   101,238.50 : 221,546 = 221,546 : x
2. Step 2: Convert to fraction form
   101,238.50/221,546 = 221,546/x
3. Step 3: Cross multiply
   101,238.50x = 221,546 × 221,546
4. Step 4: Simplify right side
   101,238.50x = 49,082,630,116
5. Step 5: Solve for x
   x = 49,082,630,116/101,238.50
6. Step 6: Final answer
   x = 484,821.78