Finding the Third Proportional to 221,877 and 485,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,877 : 485,734.50 = 485,734.50 : x
2. Step 2: Convert to fraction form
   221,877/485,734.50 = 485,734.50/x
3. Step 3: Cross multiply
   221,877x = 485,734.50 × 485,734.50
4. Step 4: Simplify right side
   221,877x = 235,938,004,490.25
5. Step 5: Solve for x
   x = 235,938,004,490.25/221,877
6. Step 6: Final answer
   x = 1,063,372.97