Finding the Third Proportional to 1,378.69 and 2,973.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.69 : 2,973.38 = 2,973.38 : x
2. Step 2: Convert to fraction form
   1,378.69/2,973.38 = 2,973.38/x
3. Step 3: Cross multiply
   1,378.69x = 2,973.38 × 2,973.38
4. Step 4: Simplify right side
   1,378.69x = 8,840,958.89
5. Step 5: Solve for x
   x = 8,840,958.89/1,378.69
6. Step 6: Final answer
   x = 6,412.59