Finding the Third Proportional to 242,152 and 494,158

Step by Step Solution

1. Step 1: Write the proportion equation
   242,152 : 494,158 = 494,158 : x
2. Step 2: Convert to fraction form
   242,152/494,158 = 494,158/x
3. Step 3: Cross multiply
   242,152x = 494,158 × 494,158
4. Step 4: Simplify right side
   242,152x = 244,192,128,964
5. Step 5: Solve for x
   x = 244,192,128,964/242,152
6. Step 6: Final answer
   x = 1,008,424.99