Finding the Third Proportional to 637,370 and 978,338

Step by Step Solution

1. Step 1: Write the proportion equation
   637,370 : 978,338 = 978,338 : x
2. Step 2: Convert to fraction form
   637,370/978,338 = 978,338/x
3. Step 3: Cross multiply
   637,370x = 978,338 × 978,338
4. Step 4: Simplify right side
   637,370x = 957,145,242,244
5. Step 5: Solve for x
   x = 957,145,242,244/637,370
6. Step 6: Final answer
   x = 1,501,710.53