Finding the Third Proportional to 250,336 and 388,148

Step by Step Solution

1. Step 1: Write the proportion equation
   250,336 : 388,148 = 388,148 : x
2. Step 2: Convert to fraction form
   250,336/388,148 = 388,148/x
3. Step 3: Cross multiply
   250,336x = 388,148 × 388,148
4. Step 4: Simplify right side
   250,336x = 150,658,869,904
5. Step 5: Solve for x
   x = 150,658,869,904/250,336
6. Step 6: Final answer
   x = 601,826.62