Finding the Third Proportional to 222,364 and 487,580

Step by Step Solution

1. Step 1: Write the proportion equation
   222,364 : 487,580 = 487,580 : x
2. Step 2: Convert to fraction form
   222,364/487,580 = 487,580/x
3. Step 3: Cross multiply
   222,364x = 487,580 × 487,580
4. Step 4: Simplify right side
   222,364x = 237,734,256,400
5. Step 5: Solve for x
   x = 237,734,256,400/222,364
6. Step 6: Final answer
   x = 1,069,122.05