Finding the Third Proportional to 20,186,555 and 43,780,456

Step by Step Solution

1. Step 1: Write the proportion equation
   20,186,555 : 43,780,456 = 43,780,456 : x
2. Step 2: Convert to fraction form
   20,186,555/43,780,456 = 43,780,456/x
3. Step 3: Cross multiply
   20,186,555x = 43,780,456 × 43,780,456
4. Step 4: Simplify right side
   20,186,555x = 1,916,728,327,567,936
5. Step 5: Solve for x
   x = 1,916,728,327,567,936/20,186,555
6. Step 6: Final answer
   x = 94,950,739.62