Finding the Third Proportional to 1,330,964 and 2,068,638

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330,964 : 2,068,638 = 2,068,638 : x
2. Step 2: Convert to fraction form
   1,330,964/2,068,638 = 2,068,638/x
3. Step 3: Cross multiply
   1,330,964x = 2,068,638 × 2,068,638
4. Step 4: Simplify right side
   1,330,964x = 4,279,263,175,044
5. Step 5: Solve for x
   x = 4,279,263,175,044/1,330,964
6. Step 6: Final answer
   x = 3,215,160.72