Finding the Third Proportional to 31,129,770 and 49,729,996

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129,770 : 49,729,996 = 49,729,996 : x
2. Step 2: Convert to fraction form
   31,129,770/49,729,996 = 49,729,996/x
3. Step 3: Cross multiply
   31,129,770x = 49,729,996 × 49,729,996
4. Step 4: Simplify right side
   31,129,770x = 2,473,072,502,160,016
5. Step 5: Solve for x
   x = 2,473,072,502,160,016/31,129,770
6. Step 6: Final answer
   x = 79,443,969.62