Finding the Third Proportional to 147,558.50 and 221,338

Step by Step Solution

1. Step 1: Write the proportion equation
   147,558.50 : 221,338 = 221,338 : x
2. Step 2: Convert to fraction form
   147,558.50/221,338 = 221,338/x
3. Step 3: Cross multiply
   147,558.50x = 221,338 × 221,338
4. Step 4: Simplify right side
   147,558.50x = 48,990,510,244
5. Step 5: Solve for x
   x = 48,990,510,244/147,558.50
6. Step 6: Final answer
   x = 332,007.38