Finding the Third Proportional to 557,853 and 1,145,109

Step by Step Solution

1. Step 1: Write the proportion equation
   557,853 : 1,145,109 = 1,145,109 : x
2. Step 2: Convert to fraction form
   557,853/1,145,109 = 1,145,109/x
3. Step 3: Cross multiply
   557,853x = 1,145,109 × 1,145,109
4. Step 4: Simplify right side
   557,853x = 1,311,274,621,881
5. Step 5: Solve for x
   x = 1,311,274,621,881/557,853
6. Step 6: Final answer
   x = 2,350,573.76