Finding the Third Proportional to 713,364 and 978,192

Step by Step Solution

1. Step 1: Write the proportion equation
   713,364 : 978,192 = 978,192 : x
2. Step 2: Convert to fraction form
   713,364/978,192 = 978,192/x
3. Step 3: Cross multiply
   713,364x = 978,192 × 978,192
4. Step 4: Simplify right side
   713,364x = 956,859,588,864
5. Step 5: Solve for x
   x = 956,859,588,864/713,364
6. Step 6: Final answer
   x = 1,341,334.28