Finding the Third Proportional to 394,476 and 851,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,476 : 851,986.50 = 851,986.50 : x
2. Step 2: Convert to fraction form
   394,476/851,986.50 = 851,986.50/x
3. Step 3: Cross multiply
   394,476x = 851,986.50 × 851,986.50
4. Step 4: Simplify right side
   394,476x = 725,880,996,182.25
5. Step 5: Solve for x
   x = 725,880,996,182.25/394,476
6. Step 6: Final answer
   x = 1,840,114.47