Finding the Third Proportional to 4,884,936 and 10,442,128

Step by Step Solution

1. Step 1: Write the proportion equation
   4,884,936 : 10,442,128 = 10,442,128 : x
2. Step 2: Convert to fraction form
   4,884,936/10,442,128 = 10,442,128/x
3. Step 3: Cross multiply
   4,884,936x = 10,442,128 × 10,442,128
4. Step 4: Simplify right side
   4,884,936x = 109,038,037,168,384
5. Step 5: Solve for x
   x = 109,038,037,168,384/4,884,936
6. Step 6: Final answer
   x = 22,321,282.65