Finding the Third Proportional to 222,078 and 488,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,078 : 488,443.50 = 488,443.50 : x
2. Step 2: Convert to fraction form
   222,078/488,443.50 = 488,443.50/x
3. Step 3: Cross multiply
   222,078x = 488,443.50 × 488,443.50
4. Step 4: Simplify right side
   222,078x = 238,577,052,692.25
5. Step 5: Solve for x
   x = 238,577,052,692.25/222,078
6. Step 6: Final answer
   x = 1,074,293.95