Finding the Third Proportional to 111,559.50 and 169,953

Step by Step Solution

1. Step 1: Write the proportion equation
   111,559.50 : 169,953 = 169,953 : x
2. Step 2: Convert to fraction form
   111,559.50/169,953 = 169,953/x
3. Step 3: Cross multiply
   111,559.50x = 169,953 × 169,953
4. Step 4: Simplify right side
   111,559.50x = 28,884,022,209
5. Step 5: Solve for x
   x = 28,884,022,209/111,559.50
6. Step 6: Final answer
   x = 258,911.36