Finding the Third Proportional to 1,438.07 and 3,191.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.07 : 3,191.51 = 3,191.51 : x
2. Step 2: Convert to fraction form
   1,438.07/3,191.51 = 3,191.51/x
3. Step 3: Cross multiply
   1,438.07x = 3,191.51 × 3,191.51
4. Step 4: Simplify right side
   1,438.07x = 10,185,740.82
5. Step 5: Solve for x
   x = 10,185,740.82/1,438.07
6. Step 6: Final answer
   x = 7,082.94