Finding the Third Proportional to 775,258 and 1,644,434

Step by Step Solution

1. Step 1: Write the proportion equation
   775,258 : 1,644,434 = 1,644,434 : x
2. Step 2: Convert to fraction form
   775,258/1,644,434 = 1,644,434/x
3. Step 3: Cross multiply
   775,258x = 1,644,434 × 1,644,434
4. Step 4: Simplify right side
   775,258x = 2,704,163,180,356
5. Step 5: Solve for x
   x = 2,704,163,180,356/775,258
6. Step 6: Final answer
   x = 3,488,081.62