Finding the Third Proportional to 238,438 and 496,478

Step by Step Solution

1. Step 1: Write the proportion equation
   238,438 : 496,478 = 496,478 : x
2. Step 2: Convert to fraction form
   238,438/496,478 = 496,478/x
3. Step 3: Cross multiply
   238,438x = 496,478 × 496,478
4. Step 4: Simplify right side
   238,438x = 246,490,404,484
5. Step 5: Solve for x
   x = 246,490,404,484/238,438
6. Step 6: Final answer
   x = 1,033,771.48