Finding the Third Proportional to 453,686 and 978,242

Step by Step Solution

1. Step 1: Write the proportion equation
   453,686 : 978,242 = 978,242 : x
2. Step 2: Convert to fraction form
   453,686/978,242 = 978,242/x
3. Step 3: Cross multiply
   453,686x = 978,242 × 978,242
4. Step 4: Simplify right side
   453,686x = 956,957,410,564
5. Step 5: Solve for x
   x = 956,957,410,564/453,686
6. Step 6: Final answer
   x = 2,109,294.56