Finding the Third Proportional to 3,686,887 and 8,049,149

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,887 : 8,049,149 = 8,049,149 : x
2. Step 2: Convert to fraction form
   3,686,887/8,049,149 = 8,049,149/x
3. Step 3: Cross multiply
   3,686,887x = 8,049,149 × 8,049,149
4. Step 4: Simplify right side
   3,686,887x = 64,788,799,624,201
5. Step 5: Solve for x
   x = 64,788,799,624,201/3,686,887
6. Step 6: Final answer
   x = 17,572,765.21