Finding the Third Proportional to 395,221.50 and 850,386

Step by Step Solution

1. Step 1: Write the proportion equation
   395,221.50 : 850,386 = 850,386 : x
2. Step 2: Convert to fraction form
   395,221.50/850,386 = 850,386/x
3. Step 3: Cross multiply
   395,221.50x = 850,386 × 850,386
4. Step 4: Simplify right side
   395,221.50x = 723,156,348,996
5. Step 5: Solve for x
   x = 723,156,348,996/395,221.50
6. Step 6: Final answer
   x = 1,829,749.52