Finding the Third Proportional to 1,340.79 and 2,051.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.79 : 2,051.09 = 2,051.09 : x
2. Step 2: Convert to fraction form
   1,340.79/2,051.09 = 2,051.09/x
3. Step 3: Cross multiply
   1,340.79x = 2,051.09 × 2,051.09
4. Step 4: Simplify right side
   1,340.79x = 4,206,953.52
5. Step 5: Solve for x
   x = 4,206,953.52/1,340.79
6. Step 6: Final answer
   x = 3,137.67