Finding the Third Proportional to 445,062 and 683,145

Step by Step Solution

1. Step 1: Write the proportion equation
   445,062 : 683,145 = 683,145 : x
2. Step 2: Convert to fraction form
   445,062/683,145 = 683,145/x
3. Step 3: Cross multiply
   445,062x = 683,145 × 683,145
4. Step 4: Simplify right side
   445,062x = 466,687,091,025
5. Step 5: Solve for x
   x = 466,687,091,025/445,062
6. Step 6: Final answer
   x = 1,048,588.94