Finding the Third Proportional to 4,136,192 and 8,749,288

Step by Step Solution

1. Step 1: Write the proportion equation
   4,136,192 : 8,749,288 = 8,749,288 : x
2. Step 2: Convert to fraction form
   4,136,192/8,749,288 = 8,749,288/x
3. Step 3: Cross multiply
   4,136,192x = 8,749,288 × 8,749,288
4. Step 4: Simplify right side
   4,136,192x = 76,550,040,506,944
5. Step 5: Solve for x
   x = 76,550,040,506,944/4,136,192
6. Step 6: Final answer
   x = 18,507,371.15