Finding the Third Proportional to 222,142 and 487,514

Step by Step Solution

1. Step 1: Write the proportion equation
   222,142 : 487,514 = 487,514 : x
2. Step 2: Convert to fraction form
   222,142/487,514 = 487,514/x
3. Step 3: Cross multiply
   222,142x = 487,514 × 487,514
4. Step 4: Simplify right side
   222,142x = 237,669,900,196
5. Step 5: Solve for x
   x = 237,669,900,196/222,142
6. Step 6: Final answer
   x = 1,069,900.79