Finding the Third Proportional to 8,491,426 and 17,770,172

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491,426 : 17,770,172 = 17,770,172 : x
2. Step 2: Convert to fraction form
   8,491,426/17,770,172 = 17,770,172/x
3. Step 3: Cross multiply
   8,491,426x = 17,770,172 × 17,770,172
4. Step 4: Simplify right side
   8,491,426x = 315,779,012,909,584
5. Step 5: Solve for x
   x = 315,779,012,909,584/8,491,426
6. Step 6: Final answer
   x = 37,187,983.85