Finding the Third Proportional to 13,863,009 and 30,913,566

Step by Step Solution

1. Step 1: Write the proportion equation
   13,863,009 : 30,913,566 = 30,913,566 : x
2. Step 2: Convert to fraction form
   13,863,009/30,913,566 = 30,913,566/x
3. Step 3: Cross multiply
   13,863,009x = 30,913,566 × 30,913,566
4. Step 4: Simplify right side
   13,863,009x = 955,648,562,836,356
5. Step 5: Solve for x
   x = 955,648,562,836,356/13,863,009
6. Step 6: Final answer
   x = 68,935,146.97