Finding the Third Proportional to 605,878 and 1,274,430

Step by Step Solution

1. Step 1: Write the proportion equation
   605,878 : 1,274,430 = 1,274,430 : x
2. Step 2: Convert to fraction form
   605,878/1,274,430 = 1,274,430/x
3. Step 3: Cross multiply
   605,878x = 1,274,430 × 1,274,430
4. Step 4: Simplify right side
   605,878x = 1,624,171,824,900
5. Step 5: Solve for x
   x = 1,624,171,824,900/605,878
6. Step 6: Final answer
   x = 2,680,691.20