Finding the Third Proportional to 19,557,870 and 42,481,476

Step by Step Solution

1. Step 1: Write the proportion equation
   19,557,870 : 42,481,476 = 42,481,476 : x
2. Step 2: Convert to fraction form
   19,557,870/42,481,476 = 42,481,476/x
3. Step 3: Cross multiply
   19,557,870x = 42,481,476 × 42,481,476
4. Step 4: Simplify right side
   19,557,870x = 1,804,675,803,138,576
5. Step 5: Solve for x
   x = 1,804,675,803,138,576/19,557,870
6. Step 6: Final answer
   x = 92,273,637.32