Finding the Third Proportional to 2,128,538 and 3,130,563

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,538 : 3,130,563 = 3,130,563 : x
2. Step 2: Convert to fraction form
   2,128,538/3,130,563 = 3,130,563/x
3. Step 3: Cross multiply
   2,128,538x = 3,130,563 × 3,130,563
4. Step 4: Simplify right side
   2,128,538x = 9,800,424,696,969
5. Step 5: Solve for x
   x = 9,800,424,696,969/2,128,538
6. Step 6: Final answer
   x = 4,604,298.68