Finding the Third Proportional to 200,715 and 275,229

Step by Step Solution

1. Step 1: Write the proportion equation
   200,715 : 275,229 = 275,229 : x
2. Step 2: Convert to fraction form
   200,715/275,229 = 275,229/x
3. Step 3: Cross multiply
   200,715x = 275,229 × 275,229
4. Step 4: Simplify right side
   200,715x = 75,751,002,441
5. Step 5: Solve for x
   x = 75,751,002,441/200,715
6. Step 6: Final answer
   x = 377,405.79