Finding the Third Proportional to 19,965,648 and 42,957,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,965,648 : 42,957,616.50 = 42,957,616.50 : x
2. Step 2: Convert to fraction form
   19,965,648/42,957,616.50 = 42,957,616.50/x
3. Step 3: Cross multiply
   19,965,648x = 42,957,616.50 × 42,957,616.50
4. Step 4: Simplify right side
   19,965,648x = 1,845,356,815,361,072.25
5. Step 5: Solve for x
   x = 1,845,356,815,361,072.25/19,965,648
6. Step 6: Final answer
   x = 92,426,592.68