Finding the Third Proportional to 6,139,878 and 13,027,836

Step by Step Solution

1. Step 1: Write the proportion equation
   6,139,878 : 13,027,836 = 13,027,836 : x
2. Step 2: Convert to fraction form
   6,139,878/13,027,836 = 13,027,836/x
3. Step 3: Cross multiply
   6,139,878x = 13,027,836 × 13,027,836
4. Step 4: Simplify right side
   6,139,878x = 169,724,510,842,896
5. Step 5: Solve for x
   x = 169,724,510,842,896/6,139,878
6. Step 6: Final answer
   x = 27,642,977.73