Finding the Third Proportional to 147,784.50 and 221,373

Step by Step Solution

1. Step 1: Write the proportion equation
   147,784.50 : 221,373 = 221,373 : x
2. Step 2: Convert to fraction form
   147,784.50/221,373 = 221,373/x
3. Step 3: Cross multiply
   147,784.50x = 221,373 × 221,373
4. Step 4: Simplify right side
   147,784.50x = 49,006,005,129
5. Step 5: Solve for x
   x = 49,006,005,129/147,784.50
6. Step 6: Final answer
   x = 331,604.50