Finding the Third Proportional to 111,015 and 169,285.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,015 : 169,285.50 = 169,285.50 : x
2. Step 2: Convert to fraction form
   111,015/169,285.50 = 169,285.50/x
3. Step 3: Cross multiply
   111,015x = 169,285.50 × 169,285.50
4. Step 4: Simplify right side
   111,015x = 28,657,580,510.25
5. Step 5: Solve for x
   x = 28,657,580,510.25/111,015
6. Step 6: Final answer
   x = 258,141.52