Finding the Third Proportional to 39,481,540 and 53,786,886

Step by Step Solution

1. Step 1: Write the proportion equation
   39,481,540 : 53,786,886 = 53,786,886 : x
2. Step 2: Convert to fraction form
   39,481,540/53,786,886 = 53,786,886/x
3. Step 3: Cross multiply
   39,481,540x = 53,786,886 × 53,786,886
4. Step 4: Simplify right side
   39,481,540x = 2,893,029,105,576,996
5. Step 5: Solve for x
   x = 2,893,029,105,576,996/39,481,540
6. Step 6: Final answer
   x = 73,275,487.88