Finding the Third Proportional to 1,431,644 and 3,087,460

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,644 : 3,087,460 = 3,087,460 : x
2. Step 2: Convert to fraction form
   1,431,644/3,087,460 = 3,087,460/x
3. Step 3: Cross multiply
   1,431,644x = 3,087,460 × 3,087,460
4. Step 4: Simplify right side
   1,431,644x = 9,532,409,251,600
5. Step 5: Solve for x
   x = 9,532,409,251,600/1,431,644
6. Step 6: Final answer
   x = 6,658,365.66