Finding the Third Proportional to 686,842 and 1,504,904

Step by Step Solution

1. Step 1: Write the proportion equation
   686,842 : 1,504,904 = 1,504,904 : x
2. Step 2: Convert to fraction form
   686,842/1,504,904 = 1,504,904/x
3. Step 3: Cross multiply
   686,842x = 1,504,904 × 1,504,904
4. Step 4: Simplify right side
   686,842x = 2,264,736,049,216
5. Step 5: Solve for x
   x = 2,264,736,049,216/686,842
6. Step 6: Final answer
   x = 3,297,317.36