Finding the Third Proportional to 250,576.50 and 388,596

Step by Step Solution

1. Step 1: Write the proportion equation
   250,576.50 : 388,596 = 388,596 : x
2. Step 2: Convert to fraction form
   250,576.50/388,596 = 388,596/x
3. Step 3: Cross multiply
   250,576.50x = 388,596 × 388,596
4. Step 4: Simplify right side
   250,576.50x = 151,006,851,216
5. Step 5: Solve for x
   x = 151,006,851,216/250,576.50
6. Step 6: Final answer
   x = 602,637.72