Finding the Third Proportional to 213,318 and 493,848

Step by Step Solution

1. Step 1: Write the proportion equation
   213,318 : 493,848 = 493,848 : x
2. Step 2: Convert to fraction form
   213,318/493,848 = 493,848/x
3. Step 3: Cross multiply
   213,318x = 493,848 × 493,848
4. Step 4: Simplify right side
   213,318x = 243,885,847,104
5. Step 5: Solve for x
   x = 243,885,847,104/213,318
6. Step 6: Final answer
   x = 1,143,297.08