Finding the Third Proportional to 59,190 and 89,397

Step by Step Solution

1. Step 1: Write the proportion equation
   59,190 : 89,397 = 89,397 : x
2. Step 2: Convert to fraction form
   59,190/89,397 = 89,397/x
3. Step 3: Cross multiply
   59,190x = 89,397 × 89,397
4. Step 4: Simplify right side
   59,190x = 7,991,823,609
5. Step 5: Solve for x
   x = 7,991,823,609/59,190
6. Step 6: Final answer
   x = 135,019.83