Finding the Third Proportional to 19,519,191 and 42,398,539

Step by Step Solution

1. Step 1: Write the proportion equation
   19,519,191 : 42,398,539 = 42,398,539 : x
2. Step 2: Convert to fraction form
   19,519,191/42,398,539 = 42,398,539/x
3. Step 3: Cross multiply
   19,519,191x = 42,398,539 × 42,398,539
4. Step 4: Simplify right side
   19,519,191x = 1,797,636,109,334,521
5. Step 5: Solve for x
   x = 1,797,636,109,334,521/19,519,191
6. Step 6: Final answer
   x = 92,095,830.68