Finding the Third Proportional to 90,132 and 191,910

Step by Step Solution

1. Step 1: Write the proportion equation
   90,132 : 191,910 = 191,910 : x
2. Step 2: Convert to fraction form
   90,132/191,910 = 191,910/x
3. Step 3: Cross multiply
   90,132x = 191,910 × 191,910
4. Step 4: Simplify right side
   90,132x = 36,829,448,100
5. Step 5: Solve for x
   x = 36,829,448,100/90,132
6. Step 6: Final answer
   x = 408,616.79