Finding the Third Proportional to 1,330,392 and 2,918,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330,392 : 2,918,328 = 2,918,328 : x
2. Step 2: Convert to fraction form
   1,330,392/2,918,328 = 2,918,328/x
3. Step 3: Cross multiply
   1,330,392x = 2,918,328 × 2,918,328
4. Step 4: Simplify right side
   1,330,392x = 8,516,638,315,584
5. Step 5: Solve for x
   x = 8,516,638,315,584/1,330,392
6. Step 6: Final answer
   x = 6,401,600.67