Finding the Third Proportional to 109,720.50 and 236,091

Step by Step Solution

1. Step 1: Write the proportion equation
   109,720.50 : 236,091 = 236,091 : x
2. Step 2: Convert to fraction form
   109,720.50/236,091 = 236,091/x
3. Step 3: Cross multiply
   109,720.50x = 236,091 × 236,091
4. Step 4: Simplify right side
   109,720.50x = 55,738,960,281
5. Step 5: Solve for x
   x = 55,738,960,281/109,720.50
6. Step 6: Final answer
   x = 508,008.62