Finding the Third Proportional to 684,270 and 985,662

Step by Step Solution

1. Step 1: Write the proportion equation
   684,270 : 985,662 = 985,662 : x
2. Step 2: Convert to fraction form
   684,270/985,662 = 985,662/x
3. Step 3: Cross multiply
   684,270x = 985,662 × 985,662
4. Step 4: Simplify right side
   684,270x = 971,529,578,244
5. Step 5: Solve for x
   x = 971,529,578,244/684,270
6. Step 6: Final answer
   x = 1,419,804.43