Finding the Third Proportional to 713,684 and 978,627

Step by Step Solution

1. Step 1: Write the proportion equation
   713,684 : 978,627 = 978,627 : x
2. Step 2: Convert to fraction form
   713,684/978,627 = 978,627/x
3. Step 3: Cross multiply
   713,684x = 978,627 × 978,627
4. Step 4: Simplify right side
   713,684x = 957,710,805,129
5. Step 5: Solve for x
   x = 957,710,805,129/713,684
6. Step 6: Final answer
   x = 1,341,925.57