Finding the Third Proportional to 123,709.50 and 275,751

Step by Step Solution

1. Step 1: Write the proportion equation
   123,709.50 : 275,751 = 275,751 : x
2. Step 2: Convert to fraction form
   123,709.50/275,751 = 275,751/x
3. Step 3: Cross multiply
   123,709.50x = 275,751 × 275,751
4. Step 4: Simplify right side
   123,709.50x = 76,038,614,001
5. Step 5: Solve for x
   x = 76,038,614,001/123,709.50
6. Step 6: Final answer
   x = 614,654.61