Finding the Third Proportional to 1,643,466 and 3,585,873

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643,466 : 3,585,873 = 3,585,873 : x
2. Step 2: Convert to fraction form
   1,643,466/3,585,873 = 3,585,873/x
3. Step 3: Cross multiply
   1,643,466x = 3,585,873 × 3,585,873
4. Step 4: Simplify right side
   1,643,466x = 12,858,485,172,129
5. Step 5: Solve for x
   x = 12,858,485,172,129/1,643,466
6. Step 6: Final answer
   x = 7,824,004.37