Finding the Third Proportional to 4,830,626 and 9,870,988

Step by Step Solution

1. Step 1: Write the proportion equation
   4,830,626 : 9,870,988 = 9,870,988 : x
2. Step 2: Convert to fraction form
   4,830,626/9,870,988 = 9,870,988/x
3. Step 3: Cross multiply
   4,830,626x = 9,870,988 × 9,870,988
4. Step 4: Simplify right side
   4,830,626x = 97,436,404,096,144
5. Step 5: Solve for x
   x = 97,436,404,096,144/4,830,626
6. Step 6: Final answer
   x = 20,170,554.31