Finding the Third Proportional to 90,832.50 and 199,161

Step by Step Solution

1. Step 1: Write the proportion equation
   90,832.50 : 199,161 = 199,161 : x
2. Step 2: Convert to fraction form
   90,832.50/199,161 = 199,161/x
3. Step 3: Cross multiply
   90,832.50x = 199,161 × 199,161
4. Step 4: Simplify right side
   90,832.50x = 39,665,103,921
5. Step 5: Solve for x
   x = 39,665,103,921/90,832.50
6. Step 6: Final answer
   x = 436,684.05