Finding the Third Proportional to 42,170 and 90,595

Step by Step Solution

1. Step 1: Write the proportion equation
   42,170 : 90,595 = 90,595 : x
2. Step 2: Convert to fraction form
   42,170/90,595 = 90,595/x
3. Step 3: Cross multiply
   42,170x = 90,595 × 90,595
4. Step 4: Simplify right side
   42,170x = 8,207,454,025
5. Step 5: Solve for x
   x = 8,207,454,025/42,170
6. Step 6: Final answer
   x = 194,627.79