Finding the Third Proportional to 2,042,713 and 4,490,642

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042,713 : 4,490,642 = 4,490,642 : x
2. Step 2: Convert to fraction form
   2,042,713/4,490,642 = 4,490,642/x
3. Step 3: Cross multiply
   2,042,713x = 4,490,642 × 4,490,642
4. Step 4: Simplify right side
   2,042,713x = 20,165,865,572,164
5. Step 5: Solve for x
   x = 20,165,865,572,164/2,042,713
6. Step 6: Final answer
   x = 9,872,099.30