Finding the Third Proportional to 1,059,291 and 1,620,729

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059,291 : 1,620,729 = 1,620,729 : x
2. Step 2: Convert to fraction form
   1,059,291/1,620,729 = 1,620,729/x
3. Step 3: Cross multiply
   1,059,291x = 1,620,729 × 1,620,729
4. Step 4: Simplify right side
   1,059,291x = 2,626,762,491,441
5. Step 5: Solve for x
   x = 2,626,762,491,441/1,059,291
6. Step 6: Final answer
   x = 2,479,736.44