Finding the Third Proportional to 10,177,790 and 21,949,910

Step by Step Solution

1. Step 1: Write the proportion equation
   10,177,790 : 21,949,910 = 21,949,910 : x
2. Step 2: Convert to fraction form
   10,177,790/21,949,910 = 21,949,910/x
3. Step 3: Cross multiply
   10,177,790x = 21,949,910 × 21,949,910
4. Step 4: Simplify right side
   10,177,790x = 481,798,549,008,100
5. Step 5: Solve for x
   x = 481,798,549,008,100/10,177,790
6. Step 6: Final answer
   x = 47,338,228.54