Finding the Third Proportional to 4,201,356 and 9,193,920

Step by Step Solution

1. Step 1: Write the proportion equation
   4,201,356 : 9,193,920 = 9,193,920 : x
2. Step 2: Convert to fraction form
   4,201,356/9,193,920 = 9,193,920/x
3. Step 3: Cross multiply
   4,201,356x = 9,193,920 × 9,193,920
4. Step 4: Simplify right side
   4,201,356x = 84,528,164,966,400
5. Step 5: Solve for x
   x = 84,528,164,966,400/4,201,356
6. Step 6: Final answer
   x = 20,119,257.92