Finding the Third Proportional to 242,512 and 497,040

Step by Step Solution

1. Step 1: Write the proportion equation
   242,512 : 497,040 = 497,040 : x
2. Step 2: Convert to fraction form
   242,512/497,040 = 497,040/x
3. Step 3: Cross multiply
   242,512x = 497,040 × 497,040
4. Step 4: Simplify right side
   242,512x = 247,048,761,600
5. Step 5: Solve for x
   x = 247,048,761,600/242,512
6. Step 6: Final answer
   x = 1,018,707.37