Finding the Third Proportional to 1,611,316 and 3,510,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611,316 : 3,510,128 = 3,510,128 : x
2. Step 2: Convert to fraction form
   1,611,316/3,510,128 = 3,510,128/x
3. Step 3: Cross multiply
   1,611,316x = 3,510,128 × 3,510,128
4. Step 4: Simplify right side
   1,611,316x = 12,320,998,576,384
5. Step 5: Solve for x
   x = 12,320,998,576,384/1,611,316
6. Step 6: Final answer
   x = 7,646,543.93