Finding the Third Proportional to 91,908 and 191,592

Step by Step Solution

1. Step 1: Write the proportion equation
   91,908 : 191,592 = 191,592 : x
2. Step 2: Convert to fraction form
   91,908/191,592 = 191,592/x
3. Step 3: Cross multiply
   91,908x = 191,592 × 191,592
4. Step 4: Simplify right side
   91,908x = 36,707,494,464
5. Step 5: Solve for x
   x = 36,707,494,464/91,908
6. Step 6: Final answer
   x = 399,393.90