Finding the Third Proportional to 143,876 and 336,048

Step by Step Solution

1. Step 1: Write the proportion equation
   143,876 : 336,048 = 336,048 : x
2. Step 2: Convert to fraction form
   143,876/336,048 = 336,048/x
3. Step 3: Cross multiply
   143,876x = 336,048 × 336,048
4. Step 4: Simplify right side
   143,876x = 112,928,258,304
5. Step 5: Solve for x
   x = 112,928,258,304/143,876
6. Step 6: Final answer
   x = 784,899.90