Finding the Third Proportional to 229,992 and 349,139.25

Step by Step Solution

1. Step 1: Write the proportion equation
   229,992 : 349,139.25 = 349,139.25 : x
2. Step 2: Convert to fraction form
   229,992/349,139.25 = 349,139.25/x
3. Step 3: Cross multiply
   229,992x = 349,139.25 × 349,139.25
4. Step 4: Simplify right side
   229,992x = 121,898,215,890.56
5. Step 5: Solve for x
   x = 121,898,215,890.56/229,992
6. Step 6: Final answer
   x = 530,010.68