Finding the Third Proportional to 554,992 and 1,188,720

Step by Step Solution

1. Step 1: Write the proportion equation
   554,992 : 1,188,720 = 1,188,720 : x
2. Step 2: Convert to fraction form
   554,992/1,188,720 = 1,188,720/x
3. Step 3: Cross multiply
   554,992x = 1,188,720 × 1,188,720
4. Step 4: Simplify right side
   554,992x = 1,413,055,238,400
5. Step 5: Solve for x
   x = 1,413,055,238,400/554,992
6. Step 6: Final answer
   x = 2,546,082.17