Finding the Third Proportional to 639,005.25 and 1,367,774.25

Step by Step Solution

1. Step 1: Write the proportion equation
   639,005.25 : 1,367,774.25 = 1,367,774.25 : x
2. Step 2: Convert to fraction form
   639,005.25/1,367,774.25 = 1,367,774.25/x
3. Step 3: Cross multiply
   639,005.25x = 1,367,774.25 × 1,367,774.25
4. Step 4: Simplify right side
   639,005.25x = 1,870,806,398,963.06
5. Step 5: Solve for x
   x = 1,870,806,398,963.06/639,005.25
6. Step 6: Final answer
   x = 2,927,685.49