Finding the Third Proportional to 654,442 and 1,368,172

Step by Step Solution

1. Step 1: Write the proportion equation
   654,442 : 1,368,172 = 1,368,172 : x
2. Step 2: Convert to fraction form
   654,442/1,368,172 = 1,368,172/x
3. Step 3: Cross multiply
   654,442x = 1,368,172 × 1,368,172
4. Step 4: Simplify right side
   654,442x = 1,871,894,621,584
5. Step 5: Solve for x
   x = 1,871,894,621,584/654,442
6. Step 6: Final answer
   x = 2,860,291.09