Finding the Third Proportional to 1,387,056 and 2,981,040

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,056 : 2,981,040 = 2,981,040 : x
2. Step 2: Convert to fraction form
   1,387,056/2,981,040 = 2,981,040/x
3. Step 3: Cross multiply
   1,387,056x = 2,981,040 × 2,981,040
4. Step 4: Simplify right side
   1,387,056x = 8,886,599,481,600
5. Step 5: Solve for x
   x = 8,886,599,481,600/1,387,056
6. Step 6: Final answer
   x = 6,406,806.56