Finding the Third Proportional to 105,390 and 158,088

Step by Step Solution

1. Step 1: Write the proportion equation
   105,390 : 158,088 = 158,088 : x
2. Step 2: Convert to fraction form
   105,390/158,088 = 158,088/x
3. Step 3: Cross multiply
   105,390x = 158,088 × 158,088
4. Step 4: Simplify right side
   105,390x = 24,991,815,744
5. Step 5: Solve for x
   x = 24,991,815,744/105,390
6. Step 6: Final answer
   x = 237,136.50