Finding the Third Proportional to 112,221 and 239,996.25

Step by Step Solution

1. Step 1: Write the proportion equation
   112,221 : 239,996.25 = 239,996.25 : x
2. Step 2: Convert to fraction form
   112,221/239,996.25 = 239,996.25/x
3. Step 3: Cross multiply
   112,221x = 239,996.25 × 239,996.25
4. Step 4: Simplify right side
   112,221x = 57,598,200,014.06
5. Step 5: Solve for x
   x = 57,598,200,014.06/112,221
6. Step 6: Final answer
   x = 513,256.88