Finding the Third Proportional to 119,900 and 243,162

Step by Step Solution

1. Step 1: Write the proportion equation
   119,900 : 243,162 = 243,162 : x
2. Step 2: Convert to fraction form
   119,900/243,162 = 243,162/x
3. Step 3: Cross multiply
   119,900x = 243,162 × 243,162
4. Step 4: Simplify right side
   119,900x = 59,127,758,244
5. Step 5: Solve for x
   x = 59,127,758,244/119,900
6. Step 6: Final answer
   x = 493,142.27