Finding the Third Proportional to 109,072 and 228,078

Step by Step Solution

1. Step 1: Write the proportion equation
   109,072 : 228,078 = 228,078 : x
2. Step 2: Convert to fraction form
   109,072/228,078 = 228,078/x
3. Step 3: Cross multiply
   109,072x = 228,078 × 228,078
4. Step 4: Simplify right side
   109,072x = 52,019,574,084
5. Step 5: Solve for x
   x = 52,019,574,084/109,072
6. Step 6: Final answer
   x = 476,928.76