Finding the Third Proportional to 491,040 and 743,200

Step by Step Solution

1. Step 1: Write the proportion equation
   491,040 : 743,200 = 743,200 : x
2. Step 2: Convert to fraction form
   491,040/743,200 = 743,200/x
3. Step 3: Cross multiply
   491,040x = 743,200 × 743,200
4. Step 4: Simplify right side
   491,040x = 552,346,240,000
5. Step 5: Solve for x
   x = 552,346,240,000/491,040
6. Step 6: Final answer
   x = 1,124,849.79