Finding the Third Proportional to 101,173 and 221,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,173 : 221,618.50 = 221,618.50 : x
2. Step 2: Convert to fraction form
   101,173/221,618.50 = 221,618.50/x
3. Step 3: Cross multiply
   101,173x = 221,618.50 × 221,618.50
4. Step 4: Simplify right side
   101,173x = 49,114,759,542.25
5. Step 5: Solve for x
   x = 49,114,759,542.25/101,173
6. Step 6: Final answer
   x = 485,453.23