Finding the Third Proportional to 212,256 and 461,988

Step by Step Solution

1. Step 1: Write the proportion equation
   212,256 : 461,988 = 461,988 : x
2. Step 2: Convert to fraction form
   212,256/461,988 = 461,988/x
3. Step 3: Cross multiply
   212,256x = 461,988 × 461,988
4. Step 4: Simplify right side
   212,256x = 213,432,912,144
5. Step 5: Solve for x
   x = 213,432,912,144/212,256
6. Step 6: Final answer
   x = 1,005,544.78