Finding the Third Proportional to 1,015,442 and 2,161,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,442 : 2,161,288 = 2,161,288 : x
2. Step 2: Convert to fraction form
   1,015,442/2,161,288 = 2,161,288/x
3. Step 3: Cross multiply
   1,015,442x = 2,161,288 × 2,161,288
4. Step 4: Simplify right side
   1,015,442x = 4,671,165,818,944
5. Step 5: Solve for x
   x = 4,671,165,818,944/1,015,442
6. Step 6: Final answer
   x = 4,600,130.60