Finding the Third Proportional to 222,422 and 489,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,422 : 489,123.50 = 489,123.50 : x
2. Step 2: Convert to fraction form
   222,422/489,123.50 = 489,123.50/x
3. Step 3: Cross multiply
   222,422x = 489,123.50 × 489,123.50
4. Step 4: Simplify right side
   222,422x = 239,241,798,252.25
5. Step 5: Solve for x
   x = 239,241,798,252.25/222,422
6. Step 6: Final answer
   x = 1,075,621.11