Finding the Third Proportional to 10,158,399 and 21,694,486

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158,399 : 21,694,486 = 21,694,486 : x
2. Step 2: Convert to fraction form
   10,158,399/21,694,486 = 21,694,486/x
3. Step 3: Cross multiply
   10,158,399x = 21,694,486 × 21,694,486
4. Step 4: Simplify right side
   10,158,399x = 470,650,722,804,196
5. Step 5: Solve for x
   x = 470,650,722,804,196/10,158,399
6. Step 6: Final answer
   x = 46,331,190.85