Finding the Third Proportional to 211,714 and 300,936

Step by Step Solution

1. Step 1: Write the proportion equation
   211,714 : 300,936 = 300,936 : x
2. Step 2: Convert to fraction form
   211,714/300,936 = 300,936/x
3. Step 3: Cross multiply
   211,714x = 300,936 × 300,936
4. Step 4: Simplify right side
   211,714x = 90,562,476,096
5. Step 5: Solve for x
   x = 90,562,476,096/211,714
6. Step 6: Final answer
   x = 427,758.56