Finding the Third Proportional to 2,171,637 and 4,631,829

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,637 : 4,631,829 = 4,631,829 : x
2. Step 2: Convert to fraction form
   2,171,637/4,631,829 = 4,631,829/x
3. Step 3: Cross multiply
   2,171,637x = 4,631,829 × 4,631,829
4. Step 4: Simplify right side
   2,171,637x = 21,453,839,885,241
5. Step 5: Solve for x
   x = 21,453,839,885,241/2,171,637
6. Step 6: Final answer
   x = 9,879,109.58