Finding the Third Proportional to 686,464 and 1,491,030

Step by Step Solution

1. Step 1: Write the proportion equation
   686,464 : 1,491,030 = 1,491,030 : x
2. Step 2: Convert to fraction form
   686,464/1,491,030 = 1,491,030/x
3. Step 3: Cross multiply
   686,464x = 1,491,030 × 1,491,030
4. Step 4: Simplify right side
   686,464x = 2,223,170,460,900
5. Step 5: Solve for x
   x = 2,223,170,460,900/686,464
6. Step 6: Final answer
   x = 3,238,582.74