Finding the Third Proportional to 139,954 and 298,596

Step by Step Solution

1. Step 1: Write the proportion equation
   139,954 : 298,596 = 298,596 : x
2. Step 2: Convert to fraction form
   139,954/298,596 = 298,596/x
3. Step 3: Cross multiply
   139,954x = 298,596 × 298,596
4. Step 4: Simplify right side
   139,954x = 89,159,571,216
5. Step 5: Solve for x
   x = 89,159,571,216/139,954
6. Step 6: Final answer
   x = 637,063.40