Finding the Third Proportional to 4,319,142 and 9,449,404

Step by Step Solution

1. Step 1: Write the proportion equation
   4,319,142 : 9,449,404 = 9,449,404 : x
2. Step 2: Convert to fraction form
   4,319,142/9,449,404 = 9,449,404/x
3. Step 3: Cross multiply
   4,319,142x = 9,449,404 × 9,449,404
4. Step 4: Simplify right side
   4,319,142x = 89,291,235,955,216
5. Step 5: Solve for x
   x = 89,291,235,955,216/4,319,142
6. Step 6: Final answer
   x = 20,673,373.54