Finding the Third Proportional to 123,312 and 264,981

Step by Step Solution

1. Step 1: Write the proportion equation
   123,312 : 264,981 = 264,981 : x
2. Step 2: Convert to fraction form
   123,312/264,981 = 264,981/x
3. Step 3: Cross multiply
   123,312x = 264,981 × 264,981
4. Step 4: Simplify right side
   123,312x = 70,214,930,361
5. Step 5: Solve for x
   x = 70,214,930,361/123,312
6. Step 6: Final answer
   x = 569,408.74