Finding the Third Proportional to 229,860 and 356,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   229,860 : 356,818.50 = 356,818.50 : x
2. Step 2: Convert to fraction form
   229,860/356,818.50 = 356,818.50/x
3. Step 3: Cross multiply
   229,860x = 356,818.50 × 356,818.50
4. Step 4: Simplify right side
   229,860x = 127,319,441,942.25
5. Step 5: Solve for x
   x = 127,319,441,942.25/229,860
6. Step 6: Final answer
   x = 553,899.95