Finding the Third Proportional to 141,918 and 213,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,918 : 213,469.50 = 213,469.50 : x
2. Step 2: Convert to fraction form
   141,918/213,469.50 = 213,469.50/x
3. Step 3: Cross multiply
   141,918x = 213,469.50 × 213,469.50
4. Step 4: Simplify right side
   141,918x = 45,569,227,430.25
5. Step 5: Solve for x
   x = 45,569,227,430.25/141,918
6. Step 6: Final answer
   x = 321,095.47