Finding the Third Proportional to 7,228,080 and 9,636,128

Step by Step Solution

1. Step 1: Write the proportion equation
   7,228,080 : 9,636,128 = 9,636,128 : x
2. Step 2: Convert to fraction form
   7,228,080/9,636,128 = 9,636,128/x
3. Step 3: Cross multiply
   7,228,080x = 9,636,128 × 9,636,128
4. Step 4: Simplify right side
   7,228,080x = 92,854,962,832,384
5. Step 5: Solve for x
   x = 92,854,962,832,384/7,228,080
6. Step 6: Final answer
   x = 12,846,421.57