Finding the Third Proportional to 445,811 and 869,298

Step by Step Solution

1. Step 1: Write the proportion equation
   445,811 : 869,298 = 869,298 : x
2. Step 2: Convert to fraction form
   445,811/869,298 = 869,298/x
3. Step 3: Cross multiply
   445,811x = 869,298 × 869,298
4. Step 4: Simplify right side
   445,811x = 755,679,012,804
5. Step 5: Solve for x
   x = 755,679,012,804/445,811
6. Step 6: Final answer
   x = 1,695,065.88