Finding the Third Proportional to 4,822,620 and 10,402,419

Step by Step Solution

1. Step 1: Write the proportion equation
   4,822,620 : 10,402,419 = 10,402,419 : x
2. Step 2: Convert to fraction form
   4,822,620/10,402,419 = 10,402,419/x
3. Step 3: Cross multiply
   4,822,620x = 10,402,419 × 10,402,419
4. Step 4: Simplify right side
   4,822,620x = 108,210,321,051,561
5. Step 5: Solve for x
   x = 108,210,321,051,561/4,822,620
6. Step 6: Final answer
   x = 22,438,077.45