Finding the Third Proportional to 713,400 and 978,244

Step by Step Solution

1. Step 1: Write the proportion equation
   713,400 : 978,244 = 978,244 : x
2. Step 2: Convert to fraction form
   713,400/978,244 = 978,244/x
3. Step 3: Cross multiply
   713,400x = 978,244 × 978,244
4. Step 4: Simplify right side
   713,400x = 956,961,323,536
5. Step 5: Solve for x
   x = 956,961,323,536/713,400
6. Step 6: Final answer
   x = 1,341,409.20