Finding the Third Proportional to 19,643,778 and 42,855,764

Step by Step Solution

1. Step 1: Write the proportion equation
   19,643,778 : 42,855,764 = 42,855,764 : x
2. Step 2: Convert to fraction form
   19,643,778/42,855,764 = 42,855,764/x
3. Step 3: Cross multiply
   19,643,778x = 42,855,764 × 42,855,764
4. Step 4: Simplify right side
   19,643,778x = 1,836,616,508,023,696
5. Step 5: Solve for x
   x = 1,836,616,508,023,696/19,643,778
6. Step 6: Final answer
   x = 93,496,093.68