Finding the Third Proportional to 634,638 and 1,321,764

Step by Step Solution

1. Step 1: Write the proportion equation
   634,638 : 1,321,764 = 1,321,764 : x
2. Step 2: Convert to fraction form
   634,638/1,321,764 = 1,321,764/x
3. Step 3: Cross multiply
   634,638x = 1,321,764 × 1,321,764
4. Step 4: Simplify right side
   634,638x = 1,747,060,071,696
5. Step 5: Solve for x
   x = 1,747,060,071,696/634,638
6. Step 6: Final answer
   x = 2,752,845.04