Finding the Third Proportional to 1,015,791 and 2,115,657

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,791 : 2,115,657 = 2,115,657 : x
2. Step 2: Convert to fraction form
   1,015,791/2,115,657 = 2,115,657/x
3. Step 3: Cross multiply
   1,015,791x = 2,115,657 × 2,115,657
4. Step 4: Simplify right side
   1,015,791x = 4,476,004,541,649
5. Step 5: Solve for x
   x = 4,476,004,541,649/1,015,791
6. Step 6: Final answer
   x = 4,406,422.72