Finding the Third Proportional to 90,077 and 191,818

Step by Step Solution

1. Step 1: Write the proportion equation
   90,077 : 191,818 = 191,818 : x
2. Step 2: Convert to fraction form
   90,077/191,818 = 191,818/x
3. Step 3: Cross multiply
   90,077x = 191,818 × 191,818
4. Step 4: Simplify right side
   90,077x = 36,794,145,124
5. Step 5: Solve for x
   x = 36,794,145,124/90,077
6. Step 6: Final answer
   x = 408,474.36