Finding the Third Proportional to 636,205 and 1,382,851

Step by Step Solution

1. Step 1: Write the proportion equation
   636,205 : 1,382,851 = 1,382,851 : x
2. Step 2: Convert to fraction form
   636,205/1,382,851 = 1,382,851/x
3. Step 3: Cross multiply
   636,205x = 1,382,851 × 1,382,851
4. Step 4: Simplify right side
   636,205x = 1,912,276,888,201
5. Step 5: Solve for x
   x = 1,912,276,888,201/636,205
6. Step 6: Final answer
   x = 3,005,755.83