Finding the Third Proportional to 222,067.50 and 488,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,067.50 : 488,422.50 = 488,422.50 : x
2. Step 2: Convert to fraction form
   222,067.50/488,422.50 = 488,422.50/x
3. Step 3: Cross multiply
   222,067.50x = 488,422.50 × 488,422.50
4. Step 4: Simplify right side
   222,067.50x = 238,556,538,506.25
5. Step 5: Solve for x
   x = 238,556,538,506.25/222,067.50
6. Step 6: Final answer
   x = 1,074,252.37