Finding the Third Proportional to 105,430 and 154,418

Step by Step Solution

1. Step 1: Write the proportion equation
   105,430 : 154,418 = 154,418 : x
2. Step 2: Convert to fraction form
   105,430/154,418 = 154,418/x
3. Step 3: Cross multiply
   105,430x = 154,418 × 154,418
4. Step 4: Simplify right side
   105,430x = 23,844,918,724
5. Step 5: Solve for x
   x = 23,844,918,724/105,430
6. Step 6: Final answer
   x = 226,168.25