Finding the Third Proportional to 1,018,478 and 2,212,117

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,478 : 2,212,117 = 2,212,117 : x
2. Step 2: Convert to fraction form
   1,018,478/2,212,117 = 2,212,117/x
3. Step 3: Cross multiply
   1,018,478x = 2,212,117 × 2,212,117
4. Step 4: Simplify right side
   1,018,478x = 4,893,461,621,689
5. Step 5: Solve for x
   x = 4,893,461,621,689/1,018,478
6. Step 6: Final answer
   x = 4,804,680.73