Finding the Third Proportional to 738,440 and 1,589,200

Step by Step Solution

1. Step 1: Write the proportion equation
   738,440 : 1,589,200 = 1,589,200 : x
2. Step 2: Convert to fraction form
   738,440/1,589,200 = 1,589,200/x
3. Step 3: Cross multiply
   738,440x = 1,589,200 × 1,589,200
4. Step 4: Simplify right side
   738,440x = 2,525,556,640,000
5. Step 5: Solve for x
   x = 2,525,556,640,000/738,440
6. Step 6: Final answer
   x = 3,420,124.37