Finding the Third Proportional to 713,438 and 978,297

Step by Step Solution

1. Step 1: Write the proportion equation
   713,438 : 978,297 = 978,297 : x
2. Step 2: Convert to fraction form
   713,438/978,297 = 978,297/x
3. Step 3: Cross multiply
   713,438x = 978,297 × 978,297
4. Step 4: Simplify right side
   713,438x = 957,065,020,209
5. Step 5: Solve for x
   x = 957,065,020,209/713,438
6. Step 6: Final answer
   x = 1,341,483.10