Finding the Third Proportional to 685,339.31 and 1,485,086.06

Step by Step Solution

1. Step 1: Write the proportion equation
   685,339.31 : 1,485,086.06 = 1,485,086.06 : x
2. Step 2: Convert to fraction form
   685,339.31/1,485,086.06 = 1,485,086.06/x
3. Step 3: Cross multiply
   685,339.31x = 1,485,086.06 × 1,485,086.06
4. Step 4: Simplify right side
   685,339.31x = 2,205,480,613,031.75
5. Step 5: Solve for x
   x = 2,205,480,613,031.75/685,339.31
6. Step 6: Final answer
   x = 3,218,085.66