Finding the Third Proportional to 809,623 and 1,776,710

Step by Step Solution

1. Step 1: Write the proportion equation
   809,623 : 1,776,710 = 1,776,710 : x
2. Step 2: Convert to fraction form
   809,623/1,776,710 = 1,776,710/x
3. Step 3: Cross multiply
   809,623x = 1,776,710 × 1,776,710
4. Step 4: Simplify right side
   809,623x = 3,156,698,424,100
5. Step 5: Solve for x
   x = 3,156,698,424,100/809,623
6. Step 6: Final answer
   x = 3,898,973.26