Finding the Third Proportional to 10,158,426 and 21,694,542

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158,426 : 21,694,542 = 21,694,542 : x
2. Step 2: Convert to fraction form
   10,158,426/21,694,542 = 21,694,542/x
3. Step 3: Cross multiply
   10,158,426x = 21,694,542 × 21,694,542
4. Step 4: Simplify right side
   10,158,426x = 470,653,152,589,764
5. Step 5: Solve for x
   x = 470,653,152,589,764/10,158,426
6. Step 6: Final answer
   x = 46,331,306.90