Finding the Third Proportional to 221,944.50 and 485,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,944.50 : 485,410.50 = 485,410.50 : x
2. Step 2: Convert to fraction form
   221,944.50/485,410.50 = 485,410.50/x
3. Step 3: Cross multiply
   221,944.50x = 485,410.50 × 485,410.50
4. Step 4: Simplify right side
   221,944.50x = 235,623,353,510.25
5. Step 5: Solve for x
   x = 235,623,353,510.25/221,944.50
6. Step 6: Final answer
   x = 1,061,631.87