Finding the Third Proportional to 769,336 and 1,674,128

Step by Step Solution

1. Step 1: Write the proportion equation
   769,336 : 1,674,128 = 1,674,128 : x
2. Step 2: Convert to fraction form
   769,336/1,674,128 = 1,674,128/x
3. Step 3: Cross multiply
   769,336x = 1,674,128 × 1,674,128
4. Step 4: Simplify right side
   769,336x = 2,802,704,560,384
5. Step 5: Solve for x
   x = 2,802,704,560,384/769,336
6. Step 6: Final answer
   x = 3,643,017.56