Finding the Third Proportional to 98,722 and 144,380

Step by Step Solution

1. Step 1: Write the proportion equation
   98,722 : 144,380 = 144,380 : x
2. Step 2: Convert to fraction form
   98,722/144,380 = 144,380/x
3. Step 3: Cross multiply
   98,722x = 144,380 × 144,380
4. Step 4: Simplify right side
   98,722x = 20,845,584,400
5. Step 5: Solve for x
   x = 20,845,584,400/98,722
6. Step 6: Final answer
   x = 211,154.40