Finding the Third Proportional to 123,062 and 289,749

Step by Step Solution

1. Step 1: Write the proportion equation
   123,062 : 289,749 = 289,749 : x
2. Step 2: Convert to fraction form
   123,062/289,749 = 289,749/x
3. Step 3: Cross multiply
   123,062x = 289,749 × 289,749
4. Step 4: Simplify right side
   123,062x = 83,954,483,001
5. Step 5: Solve for x
   x = 83,954,483,001/123,062
6. Step 6: Final answer
   x = 682,212.89