Finding the Third Proportional to 13,618.13 and 30,845.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,618.13 : 30,845.81 = 30,845.81 : x
2. Step 2: Convert to fraction form
   13,618.13/30,845.81 = 30,845.81/x
3. Step 3: Cross multiply
   13,618.13x = 30,845.81 × 30,845.81
4. Step 4: Simplify right side
   13,618.13x = 951,464,148.79
5. Step 5: Solve for x
   x = 951,464,148.79/13,618.13
6. Step 6: Final answer
   x = 69,867.49