Finding the Third Proportional to 746,986 and 1,620,636

Step by Step Solution

1. Step 1: Write the proportion equation
   746,986 : 1,620,636 = 1,620,636 : x
2. Step 2: Convert to fraction form
   746,986/1,620,636 = 1,620,636/x
3. Step 3: Cross multiply
   746,986x = 1,620,636 × 1,620,636
4. Step 4: Simplify right side
   746,986x = 2,626,461,044,496
5. Step 5: Solve for x
   x = 2,626,461,044,496/746,986
6. Step 6: Final answer
   x = 3,516,078.00