Finding the Third Proportional to 21,686,638 and 45,609,764

Step by Step Solution

1. Step 1: Write the proportion equation
   21,686,638 : 45,609,764 = 45,609,764 : x
2. Step 2: Convert to fraction form
   21,686,638/45,609,764 = 45,609,764/x
3. Step 3: Cross multiply
   21,686,638x = 45,609,764 × 45,609,764
4. Step 4: Simplify right side
   21,686,638x = 2,080,250,572,135,696
5. Step 5: Solve for x
   x = 2,080,250,572,135,696/21,686,638
6. Step 6: Final answer
   x = 95,923,147.34