Finding the Third Proportional to 221,886 and 486,008

Step by Step Solution

1. Step 1: Write the proportion equation
   221,886 : 486,008 = 486,008 : x
2. Step 2: Convert to fraction form
   221,886/486,008 = 486,008/x
3. Step 3: Cross multiply
   221,886x = 486,008 × 486,008
4. Step 4: Simplify right side
   221,886x = 236,203,776,064
5. Step 5: Solve for x
   x = 236,203,776,064/221,886
6. Step 6: Final answer
   x = 1,064,527.62