Finding the Third Proportional to 778,674 and 1,726,440

Step by Step Solution

1. Step 1: Write the proportion equation
   778,674 : 1,726,440 = 1,726,440 : x
2. Step 2: Convert to fraction form
   778,674/1,726,440 = 1,726,440/x
3. Step 3: Cross multiply
   778,674x = 1,726,440 × 1,726,440
4. Step 4: Simplify right side
   778,674x = 2,980,595,073,600
5. Step 5: Solve for x
   x = 2,980,595,073,600/778,674
6. Step 6: Final answer
   x = 3,827,782.97