Finding the Third Proportional to 478,388 and 1,025,480

Step by Step Solution

1. Step 1: Write the proportion equation
   478,388 : 1,025,480 = 1,025,480 : x
2. Step 2: Convert to fraction form
   478,388/1,025,480 = 1,025,480/x
3. Step 3: Cross multiply
   478,388x = 1,025,480 × 1,025,480
4. Step 4: Simplify right side
   478,388x = 1,051,609,230,400
5. Step 5: Solve for x
   x = 1,051,609,230,400/478,388
6. Step 6: Final answer
   x = 2,198,234.97