Finding the Third Proportional to 395,307 and 866,794.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,307 : 866,794.50 = 866,794.50 : x
2. Step 2: Convert to fraction form
   395,307/866,794.50 = 866,794.50/x
3. Step 3: Cross multiply
   395,307x = 866,794.50 × 866,794.50
4. Step 4: Simplify right side
   395,307x = 751,332,705,230.25
5. Step 5: Solve for x
   x = 751,332,705,230.25/395,307
6. Step 6: Final answer
   x = 1,900,630.92