Finding the Third Proportional to 621,796.50 and 1,338,726

Step by Step Solution

1. Step 1: Write the proportion equation
   621,796.50 : 1,338,726 = 1,338,726 : x
2. Step 2: Convert to fraction form
   621,796.50/1,338,726 = 1,338,726/x
3. Step 3: Cross multiply
   621,796.50x = 1,338,726 × 1,338,726
4. Step 4: Simplify right side
   621,796.50x = 1,792,187,303,076
5. Step 5: Solve for x
   x = 1,792,187,303,076/621,796.50
6. Step 6: Final answer
   x = 2,882,273.06