Finding the Third Proportional to 1,403,156 and 2,259,740

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,156 : 2,259,740 = 2,259,740 : x
2. Step 2: Convert to fraction form
   1,403,156/2,259,740 = 2,259,740/x
3. Step 3: Cross multiply
   1,403,156x = 2,259,740 × 2,259,740
4. Step 4: Simplify right side
   1,403,156x = 5,106,424,867,600
5. Step 5: Solve for x
   x = 5,106,424,867,600/1,403,156
6. Step 6: Final answer
   x = 3,639,242.44