Finding the Third Proportional to 19,557,144 and 42,514,830

Step by Step Solution

1. Step 1: Write the proportion equation
   19,557,144 : 42,514,830 = 42,514,830 : x
2. Step 2: Convert to fraction form
   19,557,144/42,514,830 = 42,514,830/x
3. Step 3: Cross multiply
   19,557,144x = 42,514,830 × 42,514,830
4. Step 4: Simplify right side
   19,557,144x = 1,807,510,769,928,900
5. Step 5: Solve for x
   x = 1,807,510,769,928,900/19,557,144
6. Step 6: Final answer
   x = 92,422,020.82