Finding the Third Proportional to 4,129,074 and 8,890,920

Step by Step Solution

1. Step 1: Write the proportion equation
   4,129,074 : 8,890,920 = 8,890,920 : x
2. Step 2: Convert to fraction form
   4,129,074/8,890,920 = 8,890,920/x
3. Step 3: Cross multiply
   4,129,074x = 8,890,920 × 8,890,920
4. Step 4: Simplify right side
   4,129,074x = 79,048,458,446,400
5. Step 5: Solve for x
   x = 79,048,458,446,400/4,129,074
6. Step 6: Final answer
   x = 19,144,354.99