Finding the Third Proportional to 111,054.50 and 170,830

Step by Step Solution

1. Step 1: Write the proportion equation
   111,054.50 : 170,830 = 170,830 : x
2. Step 2: Convert to fraction form
   111,054.50/170,830 = 170,830/x
3. Step 3: Cross multiply
   111,054.50x = 170,830 × 170,830
4. Step 4: Simplify right side
   111,054.50x = 29,182,888,900
5. Step 5: Solve for x
   x = 29,182,888,900/111,054.50
6. Step 6: Final answer
   x = 262,779.89