Finding the Third Proportional to 409,003.50 and 874,869

Step by Step Solution

1. Step 1: Write the proportion equation
   409,003.50 : 874,869 = 874,869 : x
2. Step 2: Convert to fraction form
   409,003.50/874,869 = 874,869/x
3. Step 3: Cross multiply
   409,003.50x = 874,869 × 874,869
4. Step 4: Simplify right side
   409,003.50x = 765,395,767,161
5. Step 5: Solve for x
   x = 765,395,767,161/409,003.50
6. Step 6: Final answer
   x = 1,871,367.28