Finding the Third Proportional to 31,517,120 and 67,741,824

Step by Step Solution

1. Step 1: Write the proportion equation
   31,517,120 : 67,741,824 = 67,741,824 : x
2. Step 2: Convert to fraction form
   31,517,120/67,741,824 = 67,741,824/x
3. Step 3: Cross multiply
   31,517,120x = 67,741,824 × 67,741,824
4. Step 4: Simplify right side
   31,517,120x = 4,588,954,718,846,976
5. Step 5: Solve for x
   x = 4,588,954,718,846,976/31,517,120
6. Step 6: Final answer
   x = 145,601,968.67