Finding the Third Proportional to 798,880 and 1,123,678

Step by Step Solution

1. Step 1: Write the proportion equation
   798,880 : 1,123,678 = 1,123,678 : x
2. Step 2: Convert to fraction form
   798,880/1,123,678 = 1,123,678/x
3. Step 3: Cross multiply
   798,880x = 1,123,678 × 1,123,678
4. Step 4: Simplify right side
   798,880x = 1,262,652,247,684
5. Step 5: Solve for x
   x = 1,262,652,247,684/798,880
6. Step 6: Final answer
   x = 1,580,528.05