Finding the Third Proportional to 111,581 and 156,067

Step by Step Solution

1. Step 1: Write the proportion equation
   111,581 : 156,067 = 156,067 : x
2. Step 2: Convert to fraction form
   111,581/156,067 = 156,067/x
3. Step 3: Cross multiply
   111,581x = 156,067 × 156,067
4. Step 4: Simplify right side
   111,581x = 24,356,908,489
5. Step 5: Solve for x
   x = 24,356,908,489/111,581
6. Step 6: Final answer
   x = 218,289.03