Finding the Third Proportional to 4,307,640 and 9,397,624

Step by Step Solution

1. Step 1: Write the proportion equation
   4,307,640 : 9,397,624 = 9,397,624 : x
2. Step 2: Convert to fraction form
   4,307,640/9,397,624 = 9,397,624/x
3. Step 3: Cross multiply
   4,307,640x = 9,397,624 × 9,397,624
4. Step 4: Simplify right side
   4,307,640x = 88,315,336,845,376
5. Step 5: Solve for x
   x = 88,315,336,845,376/4,307,640
6. Step 6: Final answer
   x = 20,502,023.58