Finding the Third Proportional to 2,128,528 and 4,571,984

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,528 : 4,571,984 = 4,571,984 : x
2. Step 2: Convert to fraction form
   2,128,528/4,571,984 = 4,571,984/x
3. Step 3: Cross multiply
   2,128,528x = 4,571,984 × 4,571,984
4. Step 4: Simplify right side
   2,128,528x = 20,903,037,696,256
5. Step 5: Solve for x
   x = 20,903,037,696,256/2,128,528
6. Step 6: Final answer
   x = 9,820,419.41