Finding the Third Proportional to 3,689,961 and 8,007,142

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,961 : 8,007,142 = 8,007,142 : x
2. Step 2: Convert to fraction form
   3,689,961/8,007,142 = 8,007,142/x
3. Step 3: Cross multiply
   3,689,961x = 8,007,142 × 8,007,142
4. Step 4: Simplify right side
   3,689,961x = 64,114,323,008,164
5. Step 5: Solve for x
   x = 64,114,323,008,164/3,689,961
6. Step 6: Final answer
   x = 17,375,338.93