Finding the Third Proportional to 407,905.50 and 874,857

Step by Step Solution

1. Step 1: Write the proportion equation
   407,905.50 : 874,857 = 874,857 : x
2. Step 2: Convert to fraction form
   407,905.50/874,857 = 874,857/x
3. Step 3: Cross multiply
   407,905.50x = 874,857 × 874,857
4. Step 4: Simplify right side
   407,905.50x = 765,374,770,449
5. Step 5: Solve for x
   x = 765,374,770,449/407,905.50
6. Step 6: Final answer
   x = 1,876,353.15