Finding the Third Proportional to 90,442 and 188,948

Step by Step Solution

1. Step 1: Write the proportion equation
   90,442 : 188,948 = 188,948 : x
2. Step 2: Convert to fraction form
   90,442/188,948 = 188,948/x
3. Step 3: Cross multiply
   90,442x = 188,948 × 188,948
4. Step 4: Simplify right side
   90,442x = 35,701,346,704
5. Step 5: Solve for x
   x = 35,701,346,704/90,442
6. Step 6: Final answer
   x = 394,743.00