Finding the Third Proportional to 111,985.50 and 234,344.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,985.50 : 234,344.25 = 234,344.25 : x
2. Step 2: Convert to fraction form
   111,985.50/234,344.25 = 234,344.25/x
3. Step 3: Cross multiply
   111,985.50x = 234,344.25 × 234,344.25
4. Step 4: Simplify right side
   111,985.50x = 54,917,227,508.06
5. Step 5: Solve for x
   x = 54,917,227,508.06/111,985.50
6. Step 6: Final answer
   x = 490,395.88