Finding the Third Proportional to 2,643,648 and 4,201,674

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,648 : 4,201,674 = 4,201,674 : x
2. Step 2: Convert to fraction form
   2,643,648/4,201,674 = 4,201,674/x
3. Step 3: Cross multiply
   2,643,648x = 4,201,674 × 4,201,674
4. Step 4: Simplify right side
   2,643,648x = 17,654,064,402,276
5. Step 5: Solve for x
   x = 17,654,064,402,276/2,643,648
6. Step 6: Final answer
   x = 6,677,917.94