Finding the Third Proportional to 111,548.38 and 169,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,548.38 : 169,936.50 = 169,936.50 : x
2. Step 2: Convert to fraction form
   111,548.38/169,936.50 = 169,936.50/x
3. Step 3: Cross multiply
   111,548.38x = 169,936.50 × 169,936.50
4. Step 4: Simplify right side
   111,548.38x = 28,878,414,032.25
5. Step 5: Solve for x
   x = 28,878,414,032.25/111,548.38
6. Step 6: Final answer
   x = 258,886.91