Finding the Third Proportional to 67,623 and 144,627

Step by Step Solution

1. Step 1: Write the proportion equation
   67,623 : 144,627 = 144,627 : x
2. Step 2: Convert to fraction form
   67,623/144,627 = 144,627/x
3. Step 3: Cross multiply
   67,623x = 144,627 × 144,627
4. Step 4: Simplify right side
   67,623x = 20,916,969,129
5. Step 5: Solve for x
   x = 20,916,969,129/67,623
6. Step 6: Final answer
   x = 309,317.38