Finding the Third Proportional to 3,551,636 and 7,670,776

Step by Step Solution

1. Step 1: Write the proportion equation
   3,551,636 : 7,670,776 = 7,670,776 : x
2. Step 2: Convert to fraction form
   3,551,636/7,670,776 = 7,670,776/x
3. Step 3: Cross multiply
   3,551,636x = 7,670,776 × 7,670,776
4. Step 4: Simplify right side
   3,551,636x = 58,840,804,442,176
5. Step 5: Solve for x
   x = 58,840,804,442,176/3,551,636
6. Step 6: Final answer
   x = 16,567,239.56