Finding the Third Proportional to 164,556 and 388,062

Step by Step Solution

1. Step 1: Write the proportion equation
   164,556 : 388,062 = 388,062 : x
2. Step 2: Convert to fraction form
   164,556/388,062 = 388,062/x
3. Step 3: Cross multiply
   164,556x = 388,062 × 388,062
4. Step 4: Simplify right side
   164,556x = 150,592,115,844
5. Step 5: Solve for x
   x = 150,592,115,844/164,556
6. Step 6: Final answer
   x = 915,142.05