Finding the Third Proportional to 111,691.50 and 168,565.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,691.50 : 168,565.50 = 168,565.50 : x
2. Step 2: Convert to fraction form
   111,691.50/168,565.50 = 168,565.50/x
3. Step 3: Cross multiply
   111,691.50x = 168,565.50 × 168,565.50
4. Step 4: Simplify right side
   111,691.50x = 28,414,327,790.25
5. Step 5: Solve for x
   x = 28,414,327,790.25/111,691.50
6. Step 6: Final answer
   x = 254,400.09