Finding the Third Proportional to 608,878 and 978,362

Step by Step Solution

1. Step 1: Write the proportion equation
   608,878 : 978,362 = 978,362 : x
2. Step 2: Convert to fraction form
   608,878/978,362 = 978,362/x
3. Step 3: Cross multiply
   608,878x = 978,362 × 978,362
4. Step 4: Simplify right side
   608,878x = 957,192,203,044
5. Step 5: Solve for x
   x = 957,192,203,044/608,878
6. Step 6: Final answer
   x = 1,572,059.10