Finding the Third Proportional to 1,914.19 and 3,909.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.19 : 3,909.38 = 3,909.38 : x
2. Step 2: Convert to fraction form
   1,914.19/3,909.38 = 3,909.38/x
3. Step 3: Cross multiply
   1,914.19x = 3,909.38 × 3,909.38
4. Step 4: Simplify right side
   1,914.19x = 15,283,212.89
5. Step 5: Solve for x
   x = 15,283,212.89/1,914.19
6. Step 6: Final answer
   x = 7,984.18