Finding the Third Proportional to 2,140,254 and 4,457,656

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,254 : 4,457,656 = 4,457,656 : x
2. Step 2: Convert to fraction form
   2,140,254/4,457,656 = 4,457,656/x
3. Step 3: Cross multiply
   2,140,254x = 4,457,656 × 4,457,656
4. Step 4: Simplify right side
   2,140,254x = 19,870,697,014,336
5. Step 5: Solve for x
   x = 19,870,697,014,336/2,140,254
6. Step 6: Final answer
   x = 9,284,270.47