Finding the Third Proportional to 8,216,994 and 12,774,018

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216,994 : 12,774,018 = 12,774,018 : x
2. Step 2: Convert to fraction form
   8,216,994/12,774,018 = 12,774,018/x
3. Step 3: Cross multiply
   8,216,994x = 12,774,018 × 12,774,018
4. Step 4: Simplify right side
   8,216,994x = 163,175,535,864,324
5. Step 5: Solve for x
   x = 163,175,535,864,324/8,216,994
6. Step 6: Final answer
   x = 19,858,300.48