Finding the Third Proportional to 20,123,958 and 31,381,679

Step by Step Solution

1. Step 1: Write the proportion equation
   20,123,958 : 31,381,679 = 31,381,679 : x
2. Step 2: Convert to fraction form
   20,123,958/31,381,679 = 31,381,679/x
3. Step 3: Cross multiply
   20,123,958x = 31,381,679 × 31,381,679
4. Step 4: Simplify right side
   20,123,958x = 984,809,776,859,041
5. Step 5: Solve for x
   x = 984,809,776,859,041/20,123,958
6. Step 6: Final answer
   x = 48,937,181.09