Finding the Third Proportional to 1,539,838 and 3,177,239

Step by Step Solution

1. Step 1: Write the proportion equation
   1,539,838 : 3,177,239 = 3,177,239 : x
2. Step 2: Convert to fraction form
   1,539,838/3,177,239 = 3,177,239/x
3. Step 3: Cross multiply
   1,539,838x = 3,177,239 × 3,177,239
4. Step 4: Simplify right side
   1,539,838x = 10,094,847,663,121
5. Step 5: Solve for x
   x = 10,094,847,663,121/1,539,838
6. Step 6: Final answer
   x = 6,555,785.52