Finding the Third Proportional to 142,079.50 and 236,765.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,079.50 : 236,765.50 = 236,765.50 : x
2. Step 2: Convert to fraction form
   142,079.50/236,765.50 = 236,765.50/x
3. Step 3: Cross multiply
   142,079.50x = 236,765.50 × 236,765.50
4. Step 4: Simplify right side
   142,079.50x = 56,057,901,990.25
5. Step 5: Solve for x
   x = 56,057,901,990.25/142,079.50
6. Step 6: Final answer
   x = 394,553.06