Finding the Third Proportional to 3,689,959 and 8,007,138

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,959 : 8,007,138 = 8,007,138 : x
2. Step 2: Convert to fraction form
   3,689,959/8,007,138 = 8,007,138/x
3. Step 3: Cross multiply
   3,689,959x = 8,007,138 × 8,007,138
4. Step 4: Simplify right side
   3,689,959x = 64,114,258,951,044
5. Step 5: Solve for x
   x = 64,114,258,951,044/3,689,959
6. Step 6: Final answer
   x = 17,375,330.99