Finding the Third Proportional to 90,042 and 195,940

Step by Step Solution

1. Step 1: Write the proportion equation
   90,042 : 195,940 = 195,940 : x
2. Step 2: Convert to fraction form
   90,042/195,940 = 195,940/x
3. Step 3: Cross multiply
   90,042x = 195,940 × 195,940
4. Step 4: Simplify right side
   90,042x = 38,392,483,600
5. Step 5: Solve for x
   x = 38,392,483,600/90,042
6. Step 6: Final answer
   x = 426,384.17