Finding the Third Proportional to 222,306 and 487,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,306 : 487,819.50 = 487,819.50 : x
2. Step 2: Convert to fraction form
   222,306/487,819.50 = 487,819.50/x
3. Step 3: Cross multiply
   222,306x = 487,819.50 × 487,819.50
4. Step 4: Simplify right side
   222,306x = 237,967,864,580.25
5. Step 5: Solve for x
   x = 237,967,864,580.25/222,306
6. Step 6: Final answer
   x = 1,070,451.83