Finding the Third Proportional to 2,176,983 and 4,642,690

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176,983 : 4,642,690 = 4,642,690 : x
2. Step 2: Convert to fraction form
   2,176,983/4,642,690 = 4,642,690/x
3. Step 3: Cross multiply
   2,176,983x = 4,642,690 × 4,642,690
4. Step 4: Simplify right side
   2,176,983x = 21,554,570,436,100
5. Step 5: Solve for x
   x = 21,554,570,436,100/2,176,983
6. Step 6: Final answer
   x = 9,901,120.24