Finding the Third Proportional to 109,719.50 and 236,089

Step by Step Solution

1. Step 1: Write the proportion equation
   109,719.50 : 236,089 = 236,089 : x
2. Step 2: Convert to fraction form
   109,719.50/236,089 = 236,089/x
3. Step 3: Cross multiply
   109,719.50x = 236,089 × 236,089
4. Step 4: Simplify right side
   109,719.50x = 55,738,015,921
5. Step 5: Solve for x
   x = 55,738,015,921/109,719.50
6. Step 6: Final answer
   x = 508,004.65