Finding the Third Proportional to 19,859,956.50 and 42,855,039

Step by Step Solution

1. Step 1: Write the proportion equation
   19,859,956.50 : 42,855,039 = 42,855,039 : x
2. Step 2: Convert to fraction form
   19,859,956.50/42,855,039 = 42,855,039/x
3. Step 3: Cross multiply
   19,859,956.50x = 42,855,039 × 42,855,039
4. Step 4: Simplify right side
   19,859,956.50x = 1,836,554,367,691,521
5. Step 5: Solve for x
   x = 1,836,554,367,691,521/19,859,956.50
6. Step 6: Final answer
   x = 92,475,246.24