Finding the Third Proportional to 222,245 and 488,986

Step by Step Solution

1. Step 1: Write the proportion equation
   222,245 : 488,986 = 488,986 : x
2. Step 2: Convert to fraction form
   222,245/488,986 = 488,986/x
3. Step 3: Cross multiply
   222,245x = 488,986 × 488,986
4. Step 4: Simplify right side
   222,245x = 239,107,308,196
5. Step 5: Solve for x
   x = 239,107,308,196/222,245
6. Step 6: Final answer
   x = 1,075,872.61