Finding the Third Proportional to 3,977,976 and 8,708,256

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977,976 : 8,708,256 = 8,708,256 : x
2. Step 2: Convert to fraction form
   3,977,976/8,708,256 = 8,708,256/x
3. Step 3: Cross multiply
   3,977,976x = 8,708,256 × 8,708,256
4. Step 4: Simplify right side
   3,977,976x = 75,833,722,561,536
5. Step 5: Solve for x
   x = 75,833,722,561,536/3,977,976
6. Step 6: Final answer
   x = 19,063,393.69