Finding the Third Proportional to 91,397 and 141,240

Step by Step Solution

1. Step 1: Write the proportion equation
   91,397 : 141,240 = 141,240 : x
2. Step 2: Convert to fraction form
   91,397/141,240 = 141,240/x
3. Step 3: Cross multiply
   91,397x = 141,240 × 141,240
4. Step 4: Simplify right side
   91,397x = 19,948,737,600
5. Step 5: Solve for x
   x = 19,948,737,600/91,397
6. Step 6: Final answer
   x = 218,264.69