Finding the Third Proportional to 1,069,740 and 2,229,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,740 : 2,229,120 = 2,229,120 : x
2. Step 2: Convert to fraction form
   1,069,740/2,229,120 = 2,229,120/x
3. Step 3: Cross multiply
   1,069,740x = 2,229,120 × 2,229,120
4. Step 4: Simplify right side
   1,069,740x = 4,968,975,974,400
5. Step 5: Solve for x
   x = 4,968,975,974,400/1,069,740
6. Step 6: Final answer
   x = 4,645,031.48