Finding the Third Proportional to 112,828 and 240,145

Step by Step Solution

1. Step 1: Write the proportion equation
   112,828 : 240,145 = 240,145 : x
2. Step 2: Convert to fraction form
   112,828/240,145 = 240,145/x
3. Step 3: Cross multiply
   112,828x = 240,145 × 240,145
4. Step 4: Simplify right side
   112,828x = 57,669,621,025
5. Step 5: Solve for x
   x = 57,669,621,025/112,828
6. Step 6: Final answer
   x = 511,128.63