Finding the Third Proportional to 686,860 and 1,504,936

Step by Step Solution

1. Step 1: Write the proportion equation
   686,860 : 1,504,936 = 1,504,936 : x
2. Step 2: Convert to fraction form
   686,860/1,504,936 = 1,504,936/x
3. Step 3: Cross multiply
   686,860x = 1,504,936 × 1,504,936
4. Step 4: Simplify right side
   686,860x = 2,264,832,364,096
5. Step 5: Solve for x
   x = 2,264,832,364,096/686,860
6. Step 6: Final answer
   x = 3,297,371.17