Finding the Third Proportional to 99,914.25 and 209,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,914.25 : 209,065.50 = 209,065.50 : x
2. Step 2: Convert to fraction form
   99,914.25/209,065.50 = 209,065.50/x
3. Step 3: Cross multiply
   99,914.25x = 209,065.50 × 209,065.50
4. Step 4: Simplify right side
   99,914.25x = 43,708,383,290.25
5. Step 5: Solve for x
   x = 43,708,383,290.25/99,914.25
6. Step 6: Final answer
   x = 437,458.95