Finding the Third Proportional to 4,518,644 and 9,933,983

Step by Step Solution

1. Step 1: Write the proportion equation
   4,518,644 : 9,933,983 = 9,933,983 : x
2. Step 2: Convert to fraction form
   4,518,644/9,933,983 = 9,933,983/x
3. Step 3: Cross multiply
   4,518,644x = 9,933,983 × 9,933,983
4. Step 4: Simplify right side
   4,518,644x = 98,684,018,244,289
5. Step 5: Solve for x
   x = 98,684,018,244,289/4,518,644
6. Step 6: Final answer
   x = 21,839,299.19