Finding the Third Proportional to 478,405 and 1,025,498

Step by Step Solution

1. Step 1: Write the proportion equation
   478,405 : 1,025,498 = 1,025,498 : x
2. Step 2: Convert to fraction form
   478,405/1,025,498 = 1,025,498/x
3. Step 3: Cross multiply
   478,405x = 1,025,498 × 1,025,498
4. Step 4: Simplify right side
   478,405x = 1,051,646,148,004
5. Step 5: Solve for x
   x = 1,051,646,148,004/478,405
6. Step 6: Final answer
   x = 2,198,234.02