Finding the Third Proportional to 984,578 and 2,151,388

Step by Step Solution

1. Step 1: Write the proportion equation
   984,578 : 2,151,388 = 2,151,388 : x
2. Step 2: Convert to fraction form
   984,578/2,151,388 = 2,151,388/x
3. Step 3: Cross multiply
   984,578x = 2,151,388 × 2,151,388
4. Step 4: Simplify right side
   984,578x = 4,628,470,326,544
5. Step 5: Solve for x
   x = 4,628,470,326,544/984,578
6. Step 6: Final answer
   x = 4,700,968.67