Finding the Third Proportional to 238,428 and 496,440

Step by Step Solution

1. Step 1: Write the proportion equation
   238,428 : 496,440 = 496,440 : x
2. Step 2: Convert to fraction form
   238,428/496,440 = 496,440/x
3. Step 3: Cross multiply
   238,428x = 496,440 × 496,440
4. Step 4: Simplify right side
   238,428x = 246,452,673,600
5. Step 5: Solve for x
   x = 246,452,673,600/238,428
6. Step 6: Final answer
   x = 1,033,656.59