Finding the Third Proportional to 616,679 and 1,300,838

Step by Step Solution

1. Step 1: Write the proportion equation
   616,679 : 1,300,838 = 1,300,838 : x
2. Step 2: Convert to fraction form
   616,679/1,300,838 = 1,300,838/x
3. Step 3: Cross multiply
   616,679x = 1,300,838 × 1,300,838
4. Step 4: Simplify right side
   616,679x = 1,692,179,502,244
5. Step 5: Solve for x
   x = 1,692,179,502,244/616,679
6. Step 6: Final answer
   x = 2,744,019.99