Finding the Third Proportional to 725,465 and 1,509,790

Step by Step Solution

1. Step 1: Write the proportion equation
   725,465 : 1,509,790 = 1,509,790 : x
2. Step 2: Convert to fraction form
   725,465/1,509,790 = 1,509,790/x
3. Step 3: Cross multiply
   725,465x = 1,509,790 × 1,509,790
4. Step 4: Simplify right side
   725,465x = 2,279,465,844,100
5. Step 5: Solve for x
   x = 2,279,465,844,100/725,465
6. Step 6: Final answer
   x = 3,142,075.56