Finding the Third Proportional to 501,978 and 978,738

Step by Step Solution

1. Step 1: Write the proportion equation
   501,978 : 978,738 = 978,738 : x
2. Step 2: Convert to fraction form
   501,978/978,738 = 978,738/x
3. Step 3: Cross multiply
   501,978x = 978,738 × 978,738
4. Step 4: Simplify right side
   501,978x = 957,928,072,644
5. Step 5: Solve for x
   x = 957,928,072,644/501,978
6. Step 6: Final answer
   x = 1,908,306.88