Finding the Third Proportional to 13,918 and 30,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,918 : 30,945.50 = 30,945.50 : x
2. Step 2: Convert to fraction form
   13,918/30,945.50 = 30,945.50/x
3. Step 3: Cross multiply
   13,918x = 30,945.50 × 30,945.50
4. Step 4: Simplify right side
   13,918x = 957,623,970.25
5. Step 5: Solve for x
   x = 957,623,970.25/13,918
6. Step 6: Final answer
   x = 68,804.71