Finding the Third Proportional to 7,197,666 and 10,870,857

Step by Step Solution

1. Step 1: Write the proportion equation
   7,197,666 : 10,870,857 = 10,870,857 : x
2. Step 2: Convert to fraction form
   7,197,666/10,870,857 = 10,870,857/x
3. Step 3: Cross multiply
   7,197,666x = 10,870,857 × 10,870,857
4. Step 4: Simplify right side
   7,197,666x = 118,175,531,914,449
5. Step 5: Solve for x
   x = 118,175,531,914,449/7,197,666
6. Step 6: Final answer
   x = 16,418,590.68