Finding the Third Proportional to 2,143,292 and 2,918,796

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,292 : 2,918,796 = 2,918,796 : x
2. Step 2: Convert to fraction form
   2,143,292/2,918,796 = 2,918,796/x
3. Step 3: Cross multiply
   2,143,292x = 2,918,796 × 2,918,796
4. Step 4: Simplify right side
   2,143,292x = 8,519,370,089,616
5. Step 5: Solve for x
   x = 8,519,370,089,616/2,143,292
6. Step 6: Final answer
   x = 3,974,899.40