Finding the Third Proportional to 1,399,746 and 2,171,550

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,746 : 2,171,550 = 2,171,550 : x
2. Step 2: Convert to fraction form
   1,399,746/2,171,550 = 2,171,550/x
3. Step 3: Cross multiply
   1,399,746x = 2,171,550 × 2,171,550
4. Step 4: Simplify right side
   1,399,746x = 4,715,629,402,500
5. Step 5: Solve for x
   x = 4,715,629,402,500/1,399,746
6. Step 6: Final answer
   x = 3,368,917.93