Finding the Third Proportional to 21,720,606 and 31,870,857

Step by Step Solution

1. Step 1: Write the proportion equation
   21,720,606 : 31,870,857 = 31,870,857 : x
2. Step 2: Convert to fraction form
   21,720,606/31,870,857 = 31,870,857/x
3. Step 3: Cross multiply
   21,720,606x = 31,870,857 × 31,870,857
4. Step 4: Simplify right side
   21,720,606x = 1,015,751,525,914,449
5. Step 5: Solve for x
   x = 1,015,751,525,914,449/21,720,606
6. Step 6: Final answer
   x = 46,764,419.28