Finding the Third Proportional to 1,209.94 and 2,650.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209.94 : 2,650.31 = 2,650.31 : x
2. Step 2: Convert to fraction form
   1,209.94/2,650.31 = 2,650.31/x
3. Step 3: Cross multiply
   1,209.94x = 2,650.31 × 2,650.31
4. Step 4: Simplify right side
   1,209.94x = 7,024,156.35
5. Step 5: Solve for x
   x = 7,024,156.35/1,209.94
6. Step 6: Final answer
   x = 5,805.39