Finding the Third Proportional to 8,315,212 and 17,779,512

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315,212 : 17,779,512 = 17,779,512 : x
2. Step 2: Convert to fraction form
   8,315,212/17,779,512 = 17,779,512/x
3. Step 3: Cross multiply
   8,315,212x = 17,779,512 × 17,779,512
4. Step 4: Simplify right side
   8,315,212x = 316,111,046,958,144
5. Step 5: Solve for x
   x = 316,111,046,958,144/8,315,212
6. Step 6: Final answer
   x = 38,015,993.69