Finding the Third Proportional to 90,274 and 198,052

Step by Step Solution

1. Step 1: Write the proportion equation
   90,274 : 198,052 = 198,052 : x
2. Step 2: Convert to fraction form
   90,274/198,052 = 198,052/x
3. Step 3: Cross multiply
   90,274x = 198,052 × 198,052
4. Step 4: Simplify right side
   90,274x = 39,224,594,704
5. Step 5: Solve for x
   x = 39,224,594,704/90,274
6. Step 6: Final answer
   x = 434,506.00