Finding the Third Proportional to 1,200,369 and 1,840,518

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,369 : 1,840,518 = 1,840,518 : x
2. Step 2: Convert to fraction form
   1,200,369/1,840,518 = 1,840,518/x
3. Step 3: Cross multiply
   1,200,369x = 1,840,518 × 1,840,518
4. Step 4: Simplify right side
   1,200,369x = 3,387,506,508,324
5. Step 5: Solve for x
   x = 3,387,506,508,324/1,200,369
6. Step 6: Final answer
   x = 2,822,054.31