Finding the Third Proportional to 1,214,663 and 2,658,142

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,663 : 2,658,142 = 2,658,142 : x
2. Step 2: Convert to fraction form
   1,214,663/2,658,142 = 2,658,142/x
3. Step 3: Cross multiply
   1,214,663x = 2,658,142 × 2,658,142
4. Step 4: Simplify right side
   1,214,663x = 7,065,718,892,164
5. Step 5: Solve for x
   x = 7,065,718,892,164/1,214,663
6. Step 6: Final answer
   x = 5,817,019.94