Finding the Third Proportional to 480,678 and 1,112,739

Step by Step Solution

1. Step 1: Write the proportion equation
   480,678 : 1,112,739 = 1,112,739 : x
2. Step 2: Convert to fraction form
   480,678/1,112,739 = 1,112,739/x
3. Step 3: Cross multiply
   480,678x = 1,112,739 × 1,112,739
4. Step 4: Simplify right side
   480,678x = 1,238,188,082,121
5. Step 5: Solve for x
   x = 1,238,188,082,121/480,678
6. Step 6: Final answer
   x = 2,575,920.02