Finding the Third Proportional to 222,200 and 488,872

Step by Step Solution

1. Step 1: Write the proportion equation
   222,200 : 488,872 = 488,872 : x
2. Step 2: Convert to fraction form
   222,200/488,872 = 488,872/x
3. Step 3: Cross multiply
   222,200x = 488,872 × 488,872
4. Step 4: Simplify right side
   222,200x = 238,995,832,384
5. Step 5: Solve for x
   x = 238,995,832,384/222,200
6. Step 6: Final answer
   x = 1,075,588.80