Finding the Third Proportional to 776,474 and 1,646,260

Step by Step Solution

1. Step 1: Write the proportion equation
   776,474 : 1,646,260 = 1,646,260 : x
2. Step 2: Convert to fraction form
   776,474/1,646,260 = 1,646,260/x
3. Step 3: Cross multiply
   776,474x = 1,646,260 × 1,646,260
4. Step 4: Simplify right side
   776,474x = 2,710,171,987,600
5. Step 5: Solve for x
   x = 2,710,171,987,600/776,474
6. Step 6: Final answer
   x = 3,490,357.68