Finding the Third Proportional to 12,776,907 and 27,866,109

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776,907 : 27,866,109 = 27,866,109 : x
2. Step 2: Convert to fraction form
   12,776,907/27,866,109 = 27,866,109/x
3. Step 3: Cross multiply
   12,776,907x = 27,866,109 × 27,866,109
4. Step 4: Simplify right side
   12,776,907x = 776,520,030,799,881
5. Step 5: Solve for x
   x = 776,520,030,799,881/12,776,907
6. Step 6: Final answer
   x = 60,775,274.55