Finding the Third Proportional to 4,636,549 and 9,958,682

Step by Step Solution

1. Step 1: Write the proportion equation
   4,636,549 : 9,958,682 = 9,958,682 : x
2. Step 2: Convert to fraction form
   4,636,549/9,958,682 = 9,958,682/x
3. Step 3: Cross multiply
   4,636,549x = 9,958,682 × 9,958,682
4. Step 4: Simplify right side
   4,636,549x = 99,175,347,177,124
5. Step 5: Solve for x
   x = 99,175,347,177,124/4,636,549
6. Step 6: Final answer
   x = 21,389,905.98