Finding the Third Proportional to 226,290 and 446,870

Step by Step Solution

1. Step 1: Write the proportion equation
   226,290 : 446,870 = 446,870 : x
2. Step 2: Convert to fraction form
   226,290/446,870 = 446,870/x
3. Step 3: Cross multiply
   226,290x = 446,870 × 446,870
4. Step 4: Simplify right side
   226,290x = 199,692,796,900
5. Step 5: Solve for x
   x = 199,692,796,900/226,290
6. Step 6: Final answer
   x = 882,464.08