Finding the Third Proportional to 73,878 and 100,449

Step by Step Solution

1. Step 1: Write the proportion equation
   73,878 : 100,449 = 100,449 : x
2. Step 2: Convert to fraction form
   73,878/100,449 = 100,449/x
3. Step 3: Cross multiply
   73,878x = 100,449 × 100,449
4. Step 4: Simplify right side
   73,878x = 10,090,001,601
5. Step 5: Solve for x
   x = 10,090,001,601/73,878
6. Step 6: Final answer
   x = 136,576.54