Finding the Third Proportional to 1,539,544 and 2,217,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,539,544 : 2,217,640 = 2,217,640 : x
2. Step 2: Convert to fraction form
   1,539,544/2,217,640 = 2,217,640/x
3. Step 3: Cross multiply
   1,539,544x = 2,217,640 × 2,217,640
4. Step 4: Simplify right side
   1,539,544x = 4,917,927,169,600
5. Step 5: Solve for x
   x = 4,917,927,169,600/1,539,544
6. Step 6: Final answer
   x = 3,194,405.08