Finding the Third Proportional to 123,248 and 262,880

Step by Step Solution

1. Step 1: Write the proportion equation
   123,248 : 262,880 = 262,880 : x
2. Step 2: Convert to fraction form
   123,248/262,880 = 262,880/x
3. Step 3: Cross multiply
   123,248x = 262,880 × 262,880
4. Step 4: Simplify right side
   123,248x = 69,105,894,400
5. Step 5: Solve for x
   x = 69,105,894,400/123,248
6. Step 6: Final answer
   x = 560,706.01