Finding the Third Proportional to 242,574 and 497,148

Step by Step Solution

1. Step 1: Write the proportion equation
   242,574 : 497,148 = 497,148 : x
2. Step 2: Convert to fraction form
   242,574/497,148 = 497,148/x
3. Step 3: Cross multiply
   242,574x = 497,148 × 497,148
4. Step 4: Simplify right side
   242,574x = 247,156,133,904
5. Step 5: Solve for x
   x = 247,156,133,904/242,574
6. Step 6: Final answer
   x = 1,018,889.63