Finding the Third Proportional to 103,621 and 154,790

Step by Step Solution

1. Step 1: Write the proportion equation
   103,621 : 154,790 = 154,790 : x
2. Step 2: Convert to fraction form
   103,621/154,790 = 154,790/x
3. Step 3: Cross multiply
   103,621x = 154,790 × 154,790
4. Step 4: Simplify right side
   103,621x = 23,959,944,100
5. Step 5: Solve for x
   x = 23,959,944,100/103,621
6. Step 6: Final answer
   x = 231,226.72