Finding the Third Proportional to 1,215,104 and 2,658,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,104 : 2,658,960 = 2,658,960 : x
2. Step 2: Convert to fraction form
   1,215,104/2,658,960 = 2,658,960/x
3. Step 3: Cross multiply
   1,215,104x = 2,658,960 × 2,658,960
4. Step 4: Simplify right side
   1,215,104x = 7,070,068,281,600
5. Step 5: Solve for x
   x = 7,070,068,281,600/1,215,104
6. Step 6: Final answer
   x = 5,818,488.20