Finding the Third Proportional to 669,662 and 1,580,530

Step by Step Solution

1. Step 1: Write the proportion equation
   669,662 : 1,580,530 = 1,580,530 : x
2. Step 2: Convert to fraction form
   669,662/1,580,530 = 1,580,530/x
3. Step 3: Cross multiply
   669,662x = 1,580,530 × 1,580,530
4. Step 4: Simplify right side
   669,662x = 2,498,075,080,900
5. Step 5: Solve for x
   x = 2,498,075,080,900/669,662
6. Step 6: Final answer
   x = 3,730,352.15