Finding the Third Proportional to 10,158,438 and 21,694,554

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158,438 : 21,694,554 = 21,694,554 : x
2. Step 2: Convert to fraction form
   10,158,438/21,694,554 = 21,694,554/x
3. Step 3: Cross multiply
   10,158,438x = 21,694,554 × 21,694,554
4. Step 4: Simplify right side
   10,158,438x = 470,653,673,258,916
5. Step 5: Solve for x
   x = 470,653,673,258,916/10,158,438
6. Step 6: Final answer
   x = 46,331,303.42