Finding the Third Proportional to 478,728 and 1,037,240

Step by Step Solution

1. Step 1: Write the proportion equation
   478,728 : 1,037,240 = 1,037,240 : x
2. Step 2: Convert to fraction form
   478,728/1,037,240 = 1,037,240/x
3. Step 3: Cross multiply
   478,728x = 1,037,240 × 1,037,240
4. Step 4: Simplify right side
   478,728x = 1,075,866,817,600
5. Step 5: Solve for x
   x = 1,075,866,817,600/478,728
6. Step 6: Final answer
   x = 2,247,344.67