Finding the Third Proportional to 713,494 and 978,385

Step by Step Solution

1. Step 1: Write the proportion equation
   713,494 : 978,385 = 978,385 : x
2. Step 2: Convert to fraction form
   713,494/978,385 = 978,385/x
3. Step 3: Cross multiply
   713,494x = 978,385 × 978,385
4. Step 4: Simplify right side
   713,494x = 957,237,208,225
5. Step 5: Solve for x
   x = 957,237,208,225/713,494
6. Step 6: Final answer
   x = 1,341,619.14