Finding the Third Proportional to 516,736 and 1,112,640

Step by Step Solution

1. Step 1: Write the proportion equation
   516,736 : 1,112,640 = 1,112,640 : x
2. Step 2: Convert to fraction form
   516,736/1,112,640 = 1,112,640/x
3. Step 3: Cross multiply
   516,736x = 1,112,640 × 1,112,640
4. Step 4: Simplify right side
   516,736x = 1,237,967,769,600
5. Step 5: Solve for x
   x = 1,237,967,769,600/516,736
6. Step 6: Final answer
   x = 2,395,745.16