Finding the Third Proportional to 4,189,224 and 9,124,920

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,224 : 9,124,920 = 9,124,920 : x
2. Step 2: Convert to fraction form
   4,189,224/9,124,920 = 9,124,920/x
3. Step 3: Cross multiply
   4,189,224x = 9,124,920 × 9,124,920
4. Step 4: Simplify right side
   4,189,224x = 83,264,165,006,400
5. Step 5: Solve for x
   x = 83,264,165,006,400/4,189,224
6. Step 6: Final answer
   x = 19,875,796.81