Finding the Third Proportional to 91,719.56 and 137,157.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,719.56 : 137,157.38 = 137,157.38 : x
2. Step 2: Convert to fraction form
   91,719.56/137,157.38 = 137,157.38/x
3. Step 3: Cross multiply
   91,719.56x = 137,157.38 × 137,157.38
4. Step 4: Simplify right side
   91,719.56x = 18,812,145,516.89
5. Step 5: Solve for x
   x = 18,812,145,516.89/91,719.56
6. Step 6: Final answer
   x = 205,105.05