Finding the Third Proportional to 725,479 and 1,509,812

Step by Step Solution

1. Step 1: Write the proportion equation
   725,479 : 1,509,812 = 1,509,812 : x
2. Step 2: Convert to fraction form
   725,479/1,509,812 = 1,509,812/x
3. Step 3: Cross multiply
   725,479x = 1,509,812 × 1,509,812
4. Step 4: Simplify right side
   725,479x = 2,279,532,275,344
5. Step 5: Solve for x
   x = 2,279,532,275,344/725,479
6. Step 6: Final answer
   x = 3,142,106.49