Finding the Third Proportional to 231,475 and 491,390

Step by Step Solution

1. Step 1: Write the proportion equation
   231,475 : 491,390 = 491,390 : x
2. Step 2: Convert to fraction form
   231,475/491,390 = 491,390/x
3. Step 3: Cross multiply
   231,475x = 491,390 × 491,390
4. Step 4: Simplify right side
   231,475x = 241,464,132,100
5. Step 5: Solve for x
   x = 241,464,132,100/231,475
6. Step 6: Final answer
   x = 1,043,154.26