Finding the Third Proportional to 13,964.91 and 30,390.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,964.91 : 30,390.19 = 30,390.19 : x
2. Step 2: Convert to fraction form
   13,964.91/30,390.19 = 30,390.19/x
3. Step 3: Cross multiply
   13,964.91x = 30,390.19 × 30,390.19
4. Step 4: Simplify right side
   13,964.91x = 923,563,496.29
5. Step 5: Solve for x
   x = 923,563,496.29/13,964.91
6. Step 6: Final answer
   x = 66,134.60