Finding the Third Proportional to 65,422 and 100,680

Step by Step Solution

1. Step 1: Write the proportion equation
   65,422 : 100,680 = 100,680 : x
2. Step 2: Convert to fraction form
   65,422/100,680 = 100,680/x
3. Step 3: Cross multiply
   65,422x = 100,680 × 100,680
4. Step 4: Simplify right side
   65,422x = 10,136,462,400
5. Step 5: Solve for x
   x = 10,136,462,400/65,422
6. Step 6: Final answer
   x = 154,939.66