Finding the Third Proportional to 162,710 and 298,420

Step by Step Solution

1. Step 1: Write the proportion equation
   162,710 : 298,420 = 298,420 : x
2. Step 2: Convert to fraction form
   162,710/298,420 = 298,420/x
3. Step 3: Cross multiply
   162,710x = 298,420 × 298,420
4. Step 4: Simplify right side
   162,710x = 89,054,496,400
5. Step 5: Solve for x
   x = 89,054,496,400/162,710
6. Step 6: Final answer
   x = 547,320.36