Finding the Third Proportional to 1,071,456 and 2,116,416

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,456 : 2,116,416 = 2,116,416 : x
2. Step 2: Convert to fraction form
   1,071,456/2,116,416 = 2,116,416/x
3. Step 3: Cross multiply
   1,071,456x = 2,116,416 × 2,116,416
4. Step 4: Simplify right side
   1,071,456x = 4,479,216,685,056
5. Step 5: Solve for x
   x = 4,479,216,685,056/1,071,456
6. Step 6: Final answer
   x = 4,180,495.22