Finding the Third Proportional to 19,886,348 and 30,708,678

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886,348 : 30,708,678 = 30,708,678 : x
2. Step 2: Convert to fraction form
   19,886,348/30,708,678 = 30,708,678/x
3. Step 3: Cross multiply
   19,886,348x = 30,708,678 × 30,708,678
4. Step 4: Simplify right side
   19,886,348x = 943,022,904,507,684
5. Step 5: Solve for x
   x = 943,022,904,507,684/19,886,348
6. Step 6: Final answer
   x = 47,420,617.63