Finding the Third Proportional to 250,698 and 388,374

Step by Step Solution

1. Step 1: Write the proportion equation
   250,698 : 388,374 = 388,374 : x
2. Step 2: Convert to fraction form
   250,698/388,374 = 388,374/x
3. Step 3: Cross multiply
   250,698x = 388,374 × 388,374
4. Step 4: Simplify right side
   250,698x = 150,834,363,876
5. Step 5: Solve for x
   x = 150,834,363,876/250,698
6. Step 6: Final answer
   x = 601,657.63