Finding the Third Proportional to 137,436 and 298,372

Step by Step Solution

1. Step 1: Write the proportion equation
   137,436 : 298,372 = 298,372 : x
2. Step 2: Convert to fraction form
   137,436/298,372 = 298,372/x
3. Step 3: Cross multiply
   137,436x = 298,372 × 298,372
4. Step 4: Simplify right side
   137,436x = 89,025,850,384
5. Step 5: Solve for x
   x = 89,025,850,384/137,436
6. Step 6: Final answer
   x = 647,762.23