Finding the Third Proportional to 4,321,224 and 9,420,000

Step by Step Solution

1. Step 1: Write the proportion equation
   4,321,224 : 9,420,000 = 9,420,000 : x
2. Step 2: Convert to fraction form
   4,321,224/9,420,000 = 9,420,000/x
3. Step 3: Cross multiply
   4,321,224x = 9,420,000 × 9,420,000
4. Step 4: Simplify right side
   4,321,224x = 88,736,400,000,000
5. Step 5: Solve for x
   x = 88,736,400,000,000/4,321,224
6. Step 6: Final answer
   x = 20,535,015.08