Finding the Third Proportional to 2,848,140 and 4,272,780

Step by Step Solution

1. Step 1: Write the proportion equation
   2,848,140 : 4,272,780 = 4,272,780 : x
2. Step 2: Convert to fraction form
   2,848,140/4,272,780 = 4,272,780/x
3. Step 3: Cross multiply
   2,848,140x = 4,272,780 × 4,272,780
4. Step 4: Simplify right side
   2,848,140x = 18,256,648,928,400
5. Step 5: Solve for x
   x = 18,256,648,928,400/2,848,140
6. Step 6: Final answer
   x = 6,410,025.11