Finding the Third Proportional to 105,158 and 229,740

Step by Step Solution

1. Step 1: Write the proportion equation
   105,158 : 229,740 = 229,740 : x
2. Step 2: Convert to fraction form
   105,158/229,740 = 229,740/x
3. Step 3: Cross multiply
   105,158x = 229,740 × 229,740
4. Step 4: Simplify right side
   105,158x = 52,780,467,600
5. Step 5: Solve for x
   x = 52,780,467,600/105,158
6. Step 6: Final answer
   x = 501,915.86