Finding the Third Proportional to 72,636 and 158,138.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,636 : 158,138.25 = 158,138.25 : x
2. Step 2: Convert to fraction form
   72,636/158,138.25 = 158,138.25/x
3. Step 3: Cross multiply
   72,636x = 158,138.25 × 158,138.25
4. Step 4: Simplify right side
   72,636x = 25,007,706,113.06
5. Step 5: Solve for x
   x = 25,007,706,113.06/72,636
6. Step 6: Final answer
   x = 344,288.04