Finding the Third Proportional to 6,178,572 and 12,786,768

Step by Step Solution

1. Step 1: Write the proportion equation
   6,178,572 : 12,786,768 = 12,786,768 : x
2. Step 2: Convert to fraction form
   6,178,572/12,786,768 = 12,786,768/x
3. Step 3: Cross multiply
   6,178,572x = 12,786,768 × 12,786,768
4. Step 4: Simplify right side
   6,178,572x = 163,501,435,885,824
5. Step 5: Solve for x
   x = 163,501,435,885,824/6,178,572
6. Step 6: Final answer
   x = 26,462,657.70