Finding the Third Proportional to 4,830,624 and 9,870,984

Step by Step Solution

1. Step 1: Write the proportion equation
   4,830,624 : 9,870,984 = 9,870,984 : x
2. Step 2: Convert to fraction form
   4,830,624/9,870,984 = 9,870,984/x
3. Step 3: Cross multiply
   4,830,624x = 9,870,984 × 9,870,984
4. Step 4: Simplify right side
   4,830,624x = 97,436,325,128,256
5. Step 5: Solve for x
   x = 97,436,325,128,256/4,830,624
6. Step 6: Final answer
   x = 20,170,546.32