Finding the Third Proportional to 851,380 and 1,818,427

Step by Step Solution

1. Step 1: Write the proportion equation
   851,380 : 1,818,427 = 1,818,427 : x
2. Step 2: Convert to fraction form
   851,380/1,818,427 = 1,818,427/x
3. Step 3: Cross multiply
   851,380x = 1,818,427 × 1,818,427
4. Step 4: Simplify right side
   851,380x = 3,306,676,754,329
5. Step 5: Solve for x
   x = 3,306,676,754,329/851,380
6. Step 6: Final answer
   x = 3,883,902.32