Finding the Third Proportional to 4,840,963 and 10,428,820

Step by Step Solution

1. Step 1: Write the proportion equation
   4,840,963 : 10,428,820 = 10,428,820 : x
2. Step 2: Convert to fraction form
   4,840,963/10,428,820 = 10,428,820/x
3. Step 3: Cross multiply
   4,840,963x = 10,428,820 × 10,428,820
4. Step 4: Simplify right side
   4,840,963x = 108,760,286,592,400
5. Step 5: Solve for x
   x = 108,760,286,592,400/4,840,963
6. Step 6: Final answer
   x = 22,466,663.47