Finding the Third Proportional to 19,643,860 and 42,855,928

Step by Step Solution

1. Step 1: Write the proportion equation
   19,643,860 : 42,855,928 = 42,855,928 : x
2. Step 2: Convert to fraction form
   19,643,860/42,855,928 = 42,855,928/x
3. Step 3: Cross multiply
   19,643,860x = 42,855,928 × 42,855,928
4. Step 4: Simplify right side
   19,643,860x = 1,836,630,564,741,184
5. Step 5: Solve for x
   x = 1,836,630,564,741,184/19,643,860
6. Step 6: Final answer
   x = 93,496,418.97