Finding the Third Proportional to 111,218 and 167,787

Step by Step Solution

1. Step 1: Write the proportion equation
   111,218 : 167,787 = 167,787 : x
2. Step 2: Convert to fraction form
   111,218/167,787 = 167,787/x
3. Step 3: Cross multiply
   111,218x = 167,787 × 167,787
4. Step 4: Simplify right side
   111,218x = 28,152,477,369
5. Step 5: Solve for x
   x = 28,152,477,369/111,218
6. Step 6: Final answer
   x = 253,128.79