Finding the Third Proportional to 90,098 and 141,328

Step by Step Solution

1. Step 1: Write the proportion equation
   90,098 : 141,328 = 141,328 : x
2. Step 2: Convert to fraction form
   90,098/141,328 = 141,328/x
3. Step 3: Cross multiply
   90,098x = 141,328 × 141,328
4. Step 4: Simplify right side
   90,098x = 19,973,603,584
5. Step 5: Solve for x
   x = 19,973,603,584/90,098
6. Step 6: Final answer
   x = 221,687.54