Finding the Third Proportional to 445,060 and 683,142

Step by Step Solution

1. Step 1: Write the proportion equation
   445,060 : 683,142 = 683,142 : x
2. Step 2: Convert to fraction form
   445,060/683,142 = 683,142/x
3. Step 3: Cross multiply
   445,060x = 683,142 × 683,142
4. Step 4: Simplify right side
   445,060x = 466,682,992,164
5. Step 5: Solve for x
   x = 466,682,992,164/445,060
6. Step 6: Final answer
   x = 1,048,584.44