Finding the Third Proportional to 4,066,140 and 8,840,544

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066,140 : 8,840,544 = 8,840,544 : x
2. Step 2: Convert to fraction form
   4,066,140/8,840,544 = 8,840,544/x
3. Step 3: Cross multiply
   4,066,140x = 8,840,544 × 8,840,544
4. Step 4: Simplify right side
   4,066,140x = 78,155,218,215,936
5. Step 5: Solve for x
   x = 78,155,218,215,936/4,066,140
6. Step 6: Final answer
   x = 19,220,985.56