Finding the Third Proportional to 212,306 and 465,436

Step by Step Solution

1. Step 1: Write the proportion equation
   212,306 : 465,436 = 465,436 : x
2. Step 2: Convert to fraction form
   212,306/465,436 = 465,436/x
3. Step 3: Cross multiply
   212,306x = 465,436 × 465,436
4. Step 4: Simplify right side
   212,306x = 216,630,670,096
5. Step 5: Solve for x
   x = 216,630,670,096/212,306
6. Step 6: Final answer
   x = 1,020,369.99