Finding the Third Proportional to 978,612 and 1,512,456

Step by Step Solution

1. Step 1: Write the proportion equation
   978,612 : 1,512,456 = 1,512,456 : x
2. Step 2: Convert to fraction form
   978,612/1,512,456 = 1,512,456/x
3. Step 3: Cross multiply
   978,612x = 1,512,456 × 1,512,456
4. Step 4: Simplify right side
   978,612x = 2,287,523,151,936
5. Step 5: Solve for x
   x = 2,287,523,151,936/978,612
6. Step 6: Final answer
   x = 2,337,517.99