Finding the Third Proportional to 2,128,536 and 3,130,560

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,536 : 3,130,560 = 3,130,560 : x
2. Step 2: Convert to fraction form
   2,128,536/3,130,560 = 3,130,560/x
3. Step 3: Cross multiply
   2,128,536x = 3,130,560 × 3,130,560
4. Step 4: Simplify right side
   2,128,536x = 9,800,405,913,600
5. Step 5: Solve for x
   x = 9,800,405,913,600/2,128,536
6. Step 6: Final answer
   x = 4,604,294.18