Finding the Third Proportional to 139,176 and 298,026

Step by Step Solution

1. Step 1: Write the proportion equation
   139,176 : 298,026 = 298,026 : x
2. Step 2: Convert to fraction form
   139,176/298,026 = 298,026/x
3. Step 3: Cross multiply
   139,176x = 298,026 × 298,026
4. Step 4: Simplify right side
   139,176x = 88,819,496,676
5. Step 5: Solve for x
   x = 88,819,496,676/139,176
6. Step 6: Final answer
   x = 638,181.13