Finding the Third Proportional to 19,519,186 and 42,398,530

Step by Step Solution

1. Step 1: Write the proportion equation
   19,519,186 : 42,398,530 = 42,398,530 : x
2. Step 2: Convert to fraction form
   19,519,186/42,398,530 = 42,398,530/x
3. Step 3: Cross multiply
   19,519,186x = 42,398,530 × 42,398,530
4. Step 4: Simplify right side
   19,519,186x = 1,797,635,346,160,900
5. Step 5: Solve for x
   x = 1,797,635,346,160,900/19,519,186
6. Step 6: Final answer
   x = 92,095,815.17