Finding the Third Proportional to 1,357,443 and 2,680,623

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,443 : 2,680,623 = 2,680,623 : x
2. Step 2: Convert to fraction form
   1,357,443/2,680,623 = 2,680,623/x
3. Step 3: Cross multiply
   1,357,443x = 2,680,623 × 2,680,623
4. Step 4: Simplify right side
   1,357,443x = 7,185,739,668,129
5. Step 5: Solve for x
   x = 7,185,739,668,129/1,357,443
6. Step 6: Final answer
   x = 5,293,584.83