Finding the Third Proportional to 199,191 and 308,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,191 : 308,425.50 = 308,425.50 : x
2. Step 2: Convert to fraction form
   199,191/308,425.50 = 308,425.50/x
3. Step 3: Cross multiply
   199,191x = 308,425.50 × 308,425.50
4. Step 4: Simplify right side
   199,191x = 95,126,289,050.25
5. Step 5: Solve for x
   x = 95,126,289,050.25/199,191
6. Step 6: Final answer
   x = 477,563.19