Finding the Third Proportional to 105,990.50 and 148,545.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,990.50 : 148,545.50 = 148,545.50 : x
2. Step 2: Convert to fraction form
   105,990.50/148,545.50 = 148,545.50/x
3. Step 3: Cross multiply
   105,990.50x = 148,545.50 × 148,545.50
4. Step 4: Simplify right side
   105,990.50x = 22,065,765,570.25
5. Step 5: Solve for x
   x = 22,065,765,570.25/105,990.50
6. Step 6: Final answer
   x = 208,186.26