Finding the Third Proportional to 19,965,638 and 42,957,652

Step by Step Solution

1. Step 1: Write the proportion equation
   19,965,638 : 42,957,652 = 42,957,652 : x
2. Step 2: Convert to fraction form
   19,965,638/42,957,652 = 42,957,652/x
3. Step 3: Cross multiply
   19,965,638x = 42,957,652 × 42,957,652
4. Step 4: Simplify right side
   19,965,638x = 1,845,359,865,353,104
5. Step 5: Solve for x
   x = 1,845,359,865,353,104/19,965,638
6. Step 6: Final answer
   x = 92,426,791.74