Finding the Third Proportional to 19,519,236 and 42,398,640

Step by Step Solution

1. Step 1: Write the proportion equation
   19,519,236 : 42,398,640 = 42,398,640 : x
2. Step 2: Convert to fraction form
   19,519,236/42,398,640 = 42,398,640/x
3. Step 3: Cross multiply
   19,519,236x = 42,398,640 × 42,398,640
4. Step 4: Simplify right side
   19,519,236x = 1,797,644,673,849,600
5. Step 5: Solve for x
   x = 1,797,644,673,849,600/19,519,236
6. Step 6: Final answer
   x = 92,096,057.13