Finding the Third Proportional to 91,989.50 and 134,956

Step by Step Solution

1. Step 1: Write the proportion equation
   91,989.50 : 134,956 = 134,956 : x
2. Step 2: Convert to fraction form
   91,989.50/134,956 = 134,956/x
3. Step 3: Cross multiply
   91,989.50x = 134,956 × 134,956
4. Step 4: Simplify right side
   91,989.50x = 18,213,121,936
5. Step 5: Solve for x
   x = 18,213,121,936/91,989.50
6. Step 6: Final answer
   x = 197,991.31