Finding the Third Proportional to 42,386 and 90,250

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386 : 90,250 = 90,250 : x
2. Step 2: Convert to fraction form
   42,386/90,250 = 90,250/x
3. Step 3: Cross multiply
   42,386x = 90,250 × 90,250
4. Step 4: Simplify right side
   42,386x = 8,145,062,500
5. Step 5: Solve for x
   x = 8,145,062,500/42,386
6. Step 6: Final answer
   x = 192,163.98