Finding the Third Proportional to 656,036 and 978,991

Step by Step Solution

1. Step 1: Write the proportion equation
   656,036 : 978,991 = 978,991 : x
2. Step 2: Convert to fraction form
   656,036/978,991 = 978,991/x
3. Step 3: Cross multiply
   656,036x = 978,991 × 978,991
4. Step 4: Simplify right side
   656,036x = 958,423,378,081
5. Step 5: Solve for x
   x = 958,423,378,081/656,036
6. Step 6: Final answer
   x = 1,460,931.07