Finding the Third Proportional to 1,309,658 and 1,969,359

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,658 : 1,969,359 = 1,969,359 : x
2. Step 2: Convert to fraction form
   1,309,658/1,969,359 = 1,969,359/x
3. Step 3: Cross multiply
   1,309,658x = 1,969,359 × 1,969,359
4. Step 4: Simplify right side
   1,309,658x = 3,878,374,870,881
5. Step 5: Solve for x
   x = 3,878,374,870,881/1,309,658
6. Step 6: Final answer
   x = 2,961,364.62