Finding the Third Proportional to 605,700 and 1,311,705

Step by Step Solution

1. Step 1: Write the proportion equation
   605,700 : 1,311,705 = 1,311,705 : x
2. Step 2: Convert to fraction form
   605,700/1,311,705 = 1,311,705/x
3. Step 3: Cross multiply
   605,700x = 1,311,705 × 1,311,705
4. Step 4: Simplify right side
   605,700x = 1,720,570,007,025
5. Step 5: Solve for x
   x = 1,720,570,007,025/605,700
6. Step 6: Final answer
   x = 2,840,630.69