Finding the Third Proportional to 518,957 and 1,123,208

Step by Step Solution

1. Step 1: Write the proportion equation
   518,957 : 1,123,208 = 1,123,208 : x
2. Step 2: Convert to fraction form
   518,957/1,123,208 = 1,123,208/x
3. Step 3: Cross multiply
   518,957x = 1,123,208 × 1,123,208
4. Step 4: Simplify right side
   518,957x = 1,261,596,211,264
5. Step 5: Solve for x
   x = 1,261,596,211,264/518,957
6. Step 6: Final answer
   x = 2,431,022.63