Finding the Third Proportional to 222,366 and 487,584

Step by Step Solution

1. Step 1: Write the proportion equation
   222,366 : 487,584 = 487,584 : x
2. Step 2: Convert to fraction form
   222,366/487,584 = 487,584/x
3. Step 3: Cross multiply
   222,366x = 487,584 × 487,584
4. Step 4: Simplify right side
   222,366x = 237,738,157,056
5. Step 5: Solve for x
   x = 237,738,157,056/222,366
6. Step 6: Final answer
   x = 1,069,129.98