Finding the Third Proportional to 1,368,284 and 2,146,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,284 : 2,146,420 = 2,146,420 : x
2. Step 2: Convert to fraction form
   1,368,284/2,146,420 = 2,146,420/x
3. Step 3: Cross multiply
   1,368,284x = 2,146,420 × 2,146,420
4. Step 4: Simplify right side
   1,368,284x = 4,607,118,816,400
5. Step 5: Solve for x
   x = 4,607,118,816,400/1,368,284
6. Step 6: Final answer
   x = 3,367,077.90