Finding the Third Proportional to 113,469 and 154,178

Step by Step Solution

1. Step 1: Write the proportion equation
   113,469 : 154,178 = 154,178 : x
2. Step 2: Convert to fraction form
   113,469/154,178 = 154,178/x
3. Step 3: Cross multiply
   113,469x = 154,178 × 154,178
4. Step 4: Simplify right side
   113,469x = 23,770,855,684
5. Step 5: Solve for x
   x = 23,770,855,684/113,469
6. Step 6: Final answer
   x = 209,492.07