Finding the Third Proportional to 388,767 and 608,530

Step by Step Solution

1. Step 1: Write the proportion equation
   388,767 : 608,530 = 608,530 : x
2. Step 2: Convert to fraction form
   388,767/608,530 = 608,530/x
3. Step 3: Cross multiply
   388,767x = 608,530 × 608,530
4. Step 4: Simplify right side
   388,767x = 370,308,760,900
5. Step 5: Solve for x
   x = 370,308,760,900/388,767
6. Step 6: Final answer
   x = 952,521.08