Finding the Third Proportional to 65,205 and 100,890

Step by Step Solution

1. Step 1: Write the proportion equation
   65,205 : 100,890 = 100,890 : x
2. Step 2: Convert to fraction form
   65,205/100,890 = 100,890/x
3. Step 3: Cross multiply
   65,205x = 100,890 × 100,890
4. Step 4: Simplify right side
   65,205x = 10,178,792,100
5. Step 5: Solve for x
   x = 10,178,792,100/65,205
6. Step 6: Final answer
   x = 156,104.47