Finding the Third Proportional to 200,653.50 and 275,145

Step by Step Solution

1. Step 1: Write the proportion equation
   200,653.50 : 275,145 = 275,145 : x
2. Step 2: Convert to fraction form
   200,653.50/275,145 = 275,145/x
3. Step 3: Cross multiply
   200,653.50x = 275,145 × 275,145
4. Step 4: Simplify right side
   200,653.50x = 75,704,771,025
5. Step 5: Solve for x
   x = 75,704,771,025/200,653.50
6. Step 6: Final answer
   x = 377,291.06