Finding the Third Proportional to 231,412 and 481,256

Step by Step Solution

1. Step 1: Write the proportion equation
   231,412 : 481,256 = 481,256 : x
2. Step 2: Convert to fraction form
   231,412/481,256 = 481,256/x
3. Step 3: Cross multiply
   231,412x = 481,256 × 481,256
4. Step 4: Simplify right side
   231,412x = 231,607,337,536
5. Step 5: Solve for x
   x = 231,607,337,536/231,412
6. Step 6: Final answer
   x = 1,000,844.11