Finding the Third Proportional to 191,958.50 and 418,855

Step by Step Solution

1. Step 1: Write the proportion equation
   191,958.50 : 418,855 = 418,855 : x
2. Step 2: Convert to fraction form
   191,958.50/418,855 = 418,855/x
3. Step 3: Cross multiply
   191,958.50x = 418,855 × 418,855
4. Step 4: Simplify right side
   191,958.50x = 175,439,511,025
5. Step 5: Solve for x
   x = 175,439,511,025/191,958.50
6. Step 6: Final answer
   x = 913,945.00