Finding the Third Proportional to 765,458 and 1,647,920

Step by Step Solution

1. Step 1: Write the proportion equation
   765,458 : 1,647,920 = 1,647,920 : x
2. Step 2: Convert to fraction form
   765,458/1,647,920 = 1,647,920/x
3. Step 3: Cross multiply
   765,458x = 1,647,920 × 1,647,920
4. Step 4: Simplify right side
   765,458x = 2,715,640,326,400
5. Step 5: Solve for x
   x = 2,715,640,326,400/765,458
6. Step 6: Final answer
   x = 3,547,732.63