Finding the Third Proportional to 231,508 and 491,438

Step by Step Solution

1. Step 1: Write the proportion equation
   231,508 : 491,438 = 491,438 : x
2. Step 2: Convert to fraction form
   231,508/491,438 = 491,438/x
3. Step 3: Cross multiply
   231,508x = 491,438 × 491,438
4. Step 4: Simplify right side
   231,508x = 241,511,307,844
5. Step 5: Solve for x
   x = 241,511,307,844/231,508
6. Step 6: Final answer
   x = 1,043,209.34