Finding the Third Proportional to 769,636 and 1,124,662

Step by Step Solution

1. Step 1: Write the proportion equation
   769,636 : 1,124,662 = 1,124,662 : x
2. Step 2: Convert to fraction form
   769,636/1,124,662 = 1,124,662/x
3. Step 3: Cross multiply
   769,636x = 1,124,662 × 1,124,662
4. Step 4: Simplify right side
   769,636x = 1,264,864,614,244
5. Step 5: Solve for x
   x = 1,264,864,614,244/769,636
6. Step 6: Final answer
   x = 1,643,458.22