Finding the Third Proportional to 4,822,605 and 10,402,389

Step by Step Solution

1. Step 1: Write the proportion equation
   4,822,605 : 10,402,389 = 10,402,389 : x
2. Step 2: Convert to fraction form
   4,822,605/10,402,389 = 10,402,389/x
3. Step 3: Cross multiply
   4,822,605x = 10,402,389 × 10,402,389
4. Step 4: Simplify right side
   4,822,605x = 108,209,696,907,321
5. Step 5: Solve for x
   x = 108,209,696,907,321/4,822,605
6. Step 6: Final answer
   x = 22,438,017.82