Finding the Third Proportional to 89,138 and 131,043

Step by Step Solution

1. Step 1: Write the proportion equation
   89,138 : 131,043 = 131,043 : x
2. Step 2: Convert to fraction form
   89,138/131,043 = 131,043/x
3. Step 3: Cross multiply
   89,138x = 131,043 × 131,043
4. Step 4: Simplify right side
   89,138x = 17,172,267,849
5. Step 5: Solve for x
   x = 17,172,267,849/89,138
6. Step 6: Final answer
   x = 192,648.12