Finding the Third Proportional to 250,582 and 388,604

Step by Step Solution

1. Step 1: Write the proportion equation
   250,582 : 388,604 = 388,604 : x
2. Step 2: Convert to fraction form
   250,582/388,604 = 388,604/x
3. Step 3: Cross multiply
   250,582x = 388,604 × 388,604
4. Step 4: Simplify right side
   250,582x = 151,013,068,816
5. Step 5: Solve for x
   x = 151,013,068,816/250,582
6. Step 6: Final answer
   x = 602,649.31