Finding the Third Proportional to 5,555,056 and 8,391,576

Step by Step Solution

1. Step 1: Write the proportion equation
   5,555,056 : 8,391,576 = 8,391,576 : x
2. Step 2: Convert to fraction form
   5,555,056/8,391,576 = 8,391,576/x
3. Step 3: Cross multiply
   5,555,056x = 8,391,576 × 8,391,576
4. Step 4: Simplify right side
   5,555,056x = 70,418,547,763,776
5. Step 5: Solve for x
   x = 70,418,547,763,776/5,555,056
6. Step 6: Final answer
   x = 12,676,478.47