Finding the Third Proportional to 491,406.75 and 738,720

Step by Step Solution

1. Step 1: Write the proportion equation
   491,406.75 : 738,720 = 738,720 : x
2. Step 2: Convert to fraction form
   491,406.75/738,720 = 738,720/x
3. Step 3: Cross multiply
   491,406.75x = 738,720 × 738,720
4. Step 4: Simplify right side
   491,406.75x = 545,707,238,400
5. Step 5: Solve for x
   x = 545,707,238,400/491,406.75
6. Step 6: Final answer
   x = 1,110,500.09