Finding the Third Proportional to 250,762 and 388,446

Step by Step Solution

1. Step 1: Write the proportion equation
   250,762 : 388,446 = 388,446 : x
2. Step 2: Convert to fraction form
   250,762/388,446 = 388,446/x
3. Step 3: Cross multiply
   250,762x = 388,446 × 388,446
4. Step 4: Simplify right side
   250,762x = 150,890,294,916
5. Step 5: Solve for x
   x = 150,890,294,916/250,762
6. Step 6: Final answer
   x = 601,727.12