Finding the Third Proportional to 478,380 and 1,025,448

Step by Step Solution

1. Step 1: Write the proportion equation
   478,380 : 1,025,448 = 1,025,448 : x
2. Step 2: Convert to fraction form
   478,380/1,025,448 = 1,025,448/x
3. Step 3: Cross multiply
   478,380x = 1,025,448 × 1,025,448
4. Step 4: Simplify right side
   478,380x = 1,051,543,600,704
5. Step 5: Solve for x
   x = 1,051,543,600,704/478,380
6. Step 6: Final answer
   x = 2,198,134.54