Finding the Third Proportional to 1,767,440 and 3,878,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767,440 : 3,878,960 = 3,878,960 : x
2. Step 2: Convert to fraction form
   1,767,440/3,878,960 = 3,878,960/x
3. Step 3: Cross multiply
   1,767,440x = 3,878,960 × 3,878,960
4. Step 4: Simplify right side
   1,767,440x = 15,046,330,681,600
5. Step 5: Solve for x
   x = 15,046,330,681,600/1,767,440
6. Step 6: Final answer
   x = 8,513,064.48