Finding the Third Proportional to 12,776,858 and 27,866,012

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776,858 : 27,866,012 = 27,866,012 : x
2. Step 2: Convert to fraction form
   12,776,858/27,866,012 = 27,866,012/x
3. Step 3: Cross multiply
   12,776,858x = 27,866,012 × 27,866,012
4. Step 4: Simplify right side
   12,776,858x = 776,514,624,784,144
5. Step 5: Solve for x
   x = 776,514,624,784,144/12,776,858
6. Step 6: Final answer
   x = 60,775,084.51