Finding the Third Proportional to 229,861 and 356,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   229,861 : 356,819.50 = 356,819.50 : x
2. Step 2: Convert to fraction form
   229,861/356,819.50 = 356,819.50/x
3. Step 3: Cross multiply
   229,861x = 356,819.50 × 356,819.50
4. Step 4: Simplify right side
   229,861x = 127,320,155,580.25
5. Step 5: Solve for x
   x = 127,320,155,580.25/229,861
6. Step 6: Final answer
   x = 553,900.64