Finding the Third Proportional to 111,621 and 170,052

Step by Step Solution

1. Step 1: Write the proportion equation
   111,621 : 170,052 = 170,052 : x
2. Step 2: Convert to fraction form
   111,621/170,052 = 170,052/x
3. Step 3: Cross multiply
   111,621x = 170,052 × 170,052
4. Step 4: Simplify right side
   111,621x = 28,917,682,704
5. Step 5: Solve for x
   x = 28,917,682,704/111,621
6. Step 6: Final answer
   x = 259,070.27