Finding the Third Proportional to 395,416.69 and 818,870.06

Step by Step Solution

1. Step 1: Write the proportion equation
   395,416.69 : 818,870.06 = 818,870.06 : x
2. Step 2: Convert to fraction form
   395,416.69/818,870.06 = 818,870.06/x
3. Step 3: Cross multiply
   395,416.69x = 818,870.06 × 818,870.06
4. Step 4: Simplify right side
   395,416.69x = 670,548,179,258.75
5. Step 5: Solve for x
   x = 670,548,179,258.75/395,416.69
6. Step 6: Final answer
   x = 1,695,801.42