Finding the Third Proportional to 2,562,840 and 5,637,276

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562,840 : 5,637,276 = 5,637,276 : x
2. Step 2: Convert to fraction form
   2,562,840/5,637,276 = 5,637,276/x
3. Step 3: Cross multiply
   2,562,840x = 5,637,276 × 5,637,276
4. Step 4: Simplify right side
   2,562,840x = 31,778,880,700,176
5. Step 5: Solve for x
   x = 31,778,880,700,176/2,562,840
6. Step 6: Final answer
   x = 12,399,869.17