Finding the Third Proportional to 11,776,878 and 17,724,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,776,878 : 17,724,284.50 = 17,724,284.50 : x
2. Step 2: Convert to fraction form
   11,776,878/17,724,284.50 = 17,724,284.50/x
3. Step 3: Cross multiply
   11,776,878x = 17,724,284.50 × 17,724,284.50
4. Step 4: Simplify right side
   11,776,878x = 314,150,261,036,940.25
5. Step 5: Solve for x
   x = 314,150,261,036,940.25/11,776,878
6. Step 6: Final answer
   x = 26,675,173.25