Finding the Third Proportional to 104,211.25 and 212,105.38

Step by Step Solution

1. Step 1: Write the proportion equation
   104,211.25 : 212,105.38 = 212,105.38 : x
2. Step 2: Convert to fraction form
   104,211.25/212,105.38 = 212,105.38/x
3. Step 3: Cross multiply
   104,211.25x = 212,105.38 × 212,105.38
4. Step 4: Simplify right side
   104,211.25x = 44,988,690,103.89
5. Step 5: Solve for x
   x = 44,988,690,103.89/104,211.25
6. Step 6: Final answer
   x = 431,706.65