Finding the Third Proportional to 20,936,676 and 31,509,848

Step by Step Solution

1. Step 1: Write the proportion equation
   20,936,676 : 31,509,848 = 31,509,848 : x
2. Step 2: Convert to fraction form
   20,936,676/31,509,848 = 31,509,848/x
3. Step 3: Cross multiply
   20,936,676x = 31,509,848 × 31,509,848
4. Step 4: Simplify right side
   20,936,676x = 992,870,520,983,104
5. Step 5: Solve for x
   x = 992,870,520,983,104/20,936,676
6. Step 6: Final answer
   x = 47,422,547.92