Finding the Third Proportional to 111,021 and 169,294.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,021 : 169,294.50 = 169,294.50 : x
2. Step 2: Convert to fraction form
   111,021/169,294.50 = 169,294.50/x
3. Step 3: Cross multiply
   111,021x = 169,294.50 × 169,294.50
4. Step 4: Simplify right side
   111,021x = 28,660,627,730.25
5. Step 5: Solve for x
   x = 28,660,627,730.25/111,021
6. Step 6: Final answer
   x = 258,155.01