Finding the Third Proportional to 209,059.50 and 445,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   209,059.50 : 445,087.50 = 445,087.50 : x
2. Step 2: Convert to fraction form
   209,059.50/445,087.50 = 445,087.50/x
3. Step 3: Cross multiply
   209,059.50x = 445,087.50 × 445,087.50
4. Step 4: Simplify right side
   209,059.50x = 198,102,882,656.25
5. Step 5: Solve for x
   x = 198,102,882,656.25/209,059.50
6. Step 6: Final answer
   x = 947,590.91