Finding the Third Proportional to 776,820 and 1,661,576

Step by Step Solution

1. Step 1: Write the proportion equation
   776,820 : 1,661,576 = 1,661,576 : x
2. Step 2: Convert to fraction form
   776,820/1,661,576 = 1,661,576/x
3. Step 3: Cross multiply
   776,820x = 1,661,576 × 1,661,576
4. Step 4: Simplify right side
   776,820x = 2,760,834,803,776
5. Step 5: Solve for x
   x = 2,760,834,803,776/776,820
6. Step 6: Final answer
   x = 3,554,021.27