Finding the Third Proportional to 111,064.50 and 168,507

Step by Step Solution

1. Step 1: Write the proportion equation
   111,064.50 : 168,507 = 168,507 : x
2. Step 2: Convert to fraction form
   111,064.50/168,507 = 168,507/x
3. Step 3: Cross multiply
   111,064.50x = 168,507 × 168,507
4. Step 4: Simplify right side
   111,064.50x = 28,394,609,049
5. Step 5: Solve for x
   x = 28,394,609,049/111,064.50
6. Step 6: Final answer
   x = 255,658.73