Finding the Third Proportional to 31,129,764 and 49,729,987

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129,764 : 49,729,987 = 49,729,987 : x
2. Step 2: Convert to fraction form
   31,129,764/49,729,987 = 49,729,987/x
3. Step 3: Cross multiply
   31,129,764x = 49,729,987 × 49,729,987
4. Step 4: Simplify right side
   31,129,764x = 2,473,071,607,020,169
5. Step 5: Solve for x
   x = 2,473,071,607,020,169/31,129,764
6. Step 6: Final answer
   x = 79,443,956.18