Finding the Third Proportional to 10,178,546 and 21,951,278

Step by Step Solution

1. Step 1: Write the proportion equation
   10,178,546 : 21,951,278 = 21,951,278 : x
2. Step 2: Convert to fraction form
   10,178,546/21,951,278 = 21,951,278/x
3. Step 3: Cross multiply
   10,178,546x = 21,951,278 × 21,951,278
4. Step 4: Simplify right side
   10,178,546x = 481,858,605,833,284
5. Step 5: Solve for x
   x = 481,858,605,833,284/10,178,546
6. Step 6: Final answer
   x = 47,340,612.88