Finding the Third Proportional to 610,686 and 897,783.75

Step by Step Solution

1. Step 1: Write the proportion equation
   610,686 : 897,783.75 = 897,783.75 : x
2. Step 2: Convert to fraction form
   610,686/897,783.75 = 897,783.75/x
3. Step 3: Cross multiply
   610,686x = 897,783.75 × 897,783.75
4. Step 4: Simplify right side
   610,686x = 806,015,661,764.06
5. Step 5: Solve for x
   x = 806,015,661,764.06/610,686
6. Step 6: Final answer
   x = 1,319,852.86