Finding the Third Proportional to 1,221,646 and 1,864,060

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,646 : 1,864,060 = 1,864,060 : x
2. Step 2: Convert to fraction form
   1,221,646/1,864,060 = 1,864,060/x
3. Step 3: Cross multiply
   1,221,646x = 1,864,060 × 1,864,060
4. Step 4: Simplify right side
   1,221,646x = 3,474,719,683,600
5. Step 5: Solve for x
   x = 3,474,719,683,600/1,221,646
6. Step 6: Final answer
   x = 2,844,293.42