Finding the Third Proportional to 10,158,426 and 21,694,540

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158,426 : 21,694,540 = 21,694,540 : x
2. Step 2: Convert to fraction form
   10,158,426/21,694,540 = 21,694,540/x
3. Step 3: Cross multiply
   10,158,426x = 21,694,540 × 21,694,540
4. Step 4: Simplify right side
   10,158,426x = 470,653,065,811,600
5. Step 5: Solve for x
   x = 470,653,065,811,600/10,158,426
6. Step 6: Final answer
   x = 46,331,298.35