Finding the Third Proportional to 90,474 and 191,155

Step by Step Solution

1. Step 1: Write the proportion equation
   90,474 : 191,155 = 191,155 : x
2. Step 2: Convert to fraction form
   90,474/191,155 = 191,155/x
3. Step 3: Cross multiply
   90,474x = 191,155 × 191,155
4. Step 4: Simplify right side
   90,474x = 36,540,234,025
5. Step 5: Solve for x
   x = 36,540,234,025/90,474
6. Step 6: Final answer
   x = 403,875.52