Finding the Third Proportional to 618,708 and 1,356,936

Step by Step Solution

1. Step 1: Write the proportion equation
   618,708 : 1,356,936 = 1,356,936 : x
2. Step 2: Convert to fraction form
   618,708/1,356,936 = 1,356,936/x
3. Step 3: Cross multiply
   618,708x = 1,356,936 × 1,356,936
4. Step 4: Simplify right side
   618,708x = 1,841,275,308,096
5. Step 5: Solve for x
   x = 1,841,275,308,096/618,708
6. Step 6: Final answer
   x = 2,976,000.49