Finding the Third Proportional to 478,346 and 1,025,380

Step by Step Solution

1. Step 1: Write the proportion equation
   478,346 : 1,025,380 = 1,025,380 : x
2. Step 2: Convert to fraction form
   478,346/1,025,380 = 1,025,380/x
3. Step 3: Cross multiply
   478,346x = 1,025,380 × 1,025,380
4. Step 4: Simplify right side
   478,346x = 1,051,404,144,400
5. Step 5: Solve for x
   x = 1,051,404,144,400/478,346
6. Step 6: Final answer
   x = 2,197,999.24