Finding the Third Proportional to 109,138 and 229,284

Step by Step Solution

1. Step 1: Write the proportion equation
   109,138 : 229,284 = 229,284 : x
2. Step 2: Convert to fraction form
   109,138/229,284 = 229,284/x
3. Step 3: Cross multiply
   109,138x = 229,284 × 229,284
4. Step 4: Simplify right side
   109,138x = 52,571,152,656
5. Step 5: Solve for x
   x = 52,571,152,656/109,138
6. Step 6: Final answer
   x = 481,694.30