Finding the Third Proportional to 229,122 and 492,138

Step by Step Solution

1. Step 1: Write the proportion equation
   229,122 : 492,138 = 492,138 : x
2. Step 2: Convert to fraction form
   229,122/492,138 = 492,138/x
3. Step 3: Cross multiply
   229,122x = 492,138 × 492,138
4. Step 4: Simplify right side
   229,122x = 242,199,811,044
5. Step 5: Solve for x
   x = 242,199,811,044/229,122
6. Step 6: Final answer
   x = 1,057,077.94