Finding the Third Proportional to 19,965,636 and 42,957,648

Step by Step Solution

1. Step 1: Write the proportion equation
   19,965,636 : 42,957,648 = 42,957,648 : x
2. Step 2: Convert to fraction form
   19,965,636/42,957,648 = 42,957,648/x
3. Step 3: Cross multiply
   19,965,636x = 42,957,648 × 42,957,648
4. Step 4: Simplify right side
   19,965,636x = 1,845,359,521,691,904
5. Step 5: Solve for x
   x = 1,845,359,521,691,904/19,965,636
6. Step 6: Final answer
   x = 92,426,783.78