Finding the Third Proportional to 199,133 and 315,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,133 : 315,470.50 = 315,470.50 : x
2. Step 2: Convert to fraction form
   199,133/315,470.50 = 315,470.50/x
3. Step 3: Cross multiply
   199,133x = 315,470.50 × 315,470.50
4. Step 4: Simplify right side
   199,133x = 99,521,636,370.25
5. Step 5: Solve for x
   x = 99,521,636,370.25/199,133
6. Step 6: Final answer
   x = 499,774.71