Finding the Third Proportional to 540,978 and 1,175,268

Step by Step Solution

1. Step 1: Write the proportion equation
   540,978 : 1,175,268 = 1,175,268 : x
2. Step 2: Convert to fraction form
   540,978/1,175,268 = 1,175,268/x
3. Step 3: Cross multiply
   540,978x = 1,175,268 × 1,175,268
4. Step 4: Simplify right side
   540,978x = 1,381,254,871,824
5. Step 5: Solve for x
   x = 1,381,254,871,824/540,978
6. Step 6: Final answer
   x = 2,553,255.16